790

790 = 2 x 5 x 79.

790 is the smallest of four consecutive integers divisible by four consecutive primes respectively (A073607 and A072555).

The sum of the digits of 790 exceeds the sum of the digits of the square of 790 (624100) (A064399).

790 and the 790th prime (6053) have only the digit 0 in common (A107931).

790 is the sum of the remainders when the 790th prime (6053) is divided by all preceding integers (A050482).

790 is an aspiring number (A063769).

Source: Number Gossip

143

143 = 11 x 13.

143 is the smallest brilliant number whose reversal, 341, is a different brilliant number.

143 is an aspiring number.

The last 143 digits of 143¹⁴³ form a prime number.

143 is the number of three-digit primes.

Every positive integer is the sum of at most 143 seventh powers.

143² is a divisor of 143143.

143 is the sum of three consecutive primes and the sum of seven consecutive primes: 143 = 43 + 47 + 53 = 11 + 13 + 17 + 19 + 23 + 29 + 31.

Vickers Type 143 was a British single-seat biplane designed and built in 1929.

Source: Number Gossip

1235

1235 = 5 x 13 x 19.

1235 is an aspiring number.

1235 is 103103 in base 4 and 2323 in base 8. It is 575 in base 15.

The square of 1235 uses only the digits 1, 2, and 5: 1235² = 1,525,225.

1235 Schorria is a Mars-crossing asteroid discovered in 1931.

Source: Number Gossip

445

445 = 5 x 89.

445 has two representations as a sum of two squares: 445 = 2² + 21² = 11² + 18².

445 is the hypotenuse of two primitive Pythagorean triples: 445² = 84² + 437² = 203² + 396².

445 is a divisor of 34⁴ - 1.

445 has a base 10 representation (445) that is the reverse of its base 9 representation (544).

The Skoda 445 automobile was produced in Czechoslovakia between 1955 and 1959.

Source: What's Special About This Number?