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318481196 = 221121738707
BaseRepresentation
bin10010111110111…
…010001100101100
3211012021112001212
4102332322030230
51123012344241
651334053552
710615021415
oct2276721454
9735245055
10318481196
11153857700
128a7aa2b8
1350c9bb17
143042480c
151ce5ebeb
hex12fba32c

318481196 has 36 divisors (see below), whose sum is σ = 648668664. Its totient is φ = 136245120.

The previous prime is 318481171. The next prime is 318481223. The reversal of 318481196 is 691184813.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11126 + ... + 27581.

It is an arithmetic number, because the mean of its divisors is an integer number (18018574).

Almost surely, 2318481196 is an apocalyptic number.

It is an amenable number.

318481196 is an abundant number, since it is smaller than the sum of its proper divisors (330187468).

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

318481196 is a wasteful number, since it uses less digits than its factorization.

318481196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38750 (or 38737 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 318481196 is about 17846.0414658265. The cubic root of 318481196 is about 682.9065294853.

The spelling of 318481196 in words is "three hundred eighteen million, four hundred eighty-one thousand, one hundred ninety-six".

Divisors: 1 2 4 11 17 22 34 44 68 121 187 242 374 484 748 2057 4114 8228 38707 77414 154828 425777 658019 851554 1316038 1703108 2632076 4683547 7238209 9367094 14476418 18734188 28952836 79620299 159240598 318481196