856

856 = 2³ x 107. It is the product of the cube of a prime and a different prime.

856 is a nonagonal number. It is also a centered pentagonal number.

856 is 11411 in base 6 and 2332 in base 7.

856 is a member of the Fibonacci-like sequence that begins with 1 and 9: 1, 9, 10, 19, 29, 48, 77, 125, 202, 327, 529, 856, 1385, . . .

NWA 856 is a Mars meteorite found in Morocco in 2001.

Source: Positive Integers

154

154 = 2 x 7 x 11.

154 is a nonagonal number.

154 is the maximum number of regions into which 17 lines divide the plane.

154 is the smallest number that is palindromic in bases 6 (414), 8 (232), and 9 (181).

William Shakespeare wrote 154 sonnets.

Source: What's Special About This Number?

750

750 = 2 x 3 x 5³. It is the product of exactly five primes, three of which are distinct (the first three primes).

750 is a nonagonal number.

750 is a number with 16 divisors: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 750.

750 is a four-dimensional pyramidal number.

The customary size of a wine bottle in the United States is 750 milliliters

Source: On-Line Encyclopedia of Integer Sequences

474

474 = 2 x 3 x 79.

474 is a nonagonal number.

474 is a member of the Fibonacci-like sequence starting with 1 and 8: 1, 8, 9, 17, 26, 43, 69, 112, 181, 293, 474, . . .

474 is 3344 in base 5.

474 is the sum of eight consecutive primes: 474 = 43 + 47 + 53 + 59 + 61 + 67 + 71 + 73.

Mathematician and architect Anthemius of Tralles was born in the year 474 and collaborated in building the Hagia Sophia in Constantinople.

Source: On-Line Encyclopedia of Integer Sequences