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318111430 = 25721349939
BaseRepresentation
bin10010111101011…
…111111011000110
3211011120201211211
4102331133323012
51122414031210
651322122034
710611621400
oct2275377306
9734521754
10318111430
1115362490a
128a65031a
1350b9c720
1430369b70
151cdda38a
hex12f5fec6

318111430 has 48 divisors (see below), whose sum is σ = 717338160. Its totient is φ = 100675008.

The previous prime is 318111427. The next prime is 318111481. The reversal of 318111430 is 34111813.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18600 + ... + 31339.

It is an arithmetic number, because the mean of its divisors is an integer number (14944545).

Almost surely, 2318111430 is an apocalyptic number.

318111430 is an abundant number, since it is smaller than the sum of its proper divisors (399226730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318111430 is a wasteful number, since it uses less digits than its factorization.

318111430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49973 (or 49966 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 318111430 is about 17835.6785685322. The cubic root of 318111430 is about 682.6421356393.

The spelling of 318111430 in words is "three hundred eighteen million, one hundred eleven thousand, four hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 182 245 455 490 637 910 1274 3185 6370 49939 99878 249695 349573 499390 649207 699146 1298414 1747865 2447011 3246035 3495730 4544449 4894022 6492070 9088898 12235055 22722245 24470110 31811143 45444490 63622286 159055715 318111430