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318630441834 = 23232295482097
BaseRepresentation
bin1001010001011111101…
…10101011001101101010
31010110102220101112101100
410220233312223031222
520210023343114314
6402213220102230
732006650032315
oct4505766531552
91113386345340
10318630441834
11113148639a71
1251904834976
132407b855ba3
14115c959b97c
15844d099c09
hex4a2fdab36a

318630441834 has 24 divisors (see below), whose sum is σ = 690579885060. Its totient is φ = 106177235328.

The previous prime is 318630441823. The next prime is 318630441847. The reversal of 318630441834 is 438144036813.

318630441834 is a `hidden beast` number, since 3 + 1 + 8 + 630 + 4 + 4 + 1 + 8 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 313359246225 + 5271195609 = 559785^2 + 72603^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 318630441834.

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, 2682927 + ... + 2799170.

Almost surely, 2318630441834 is an apocalyptic number.

318630441834 is an abundant number, since it is smaller than the sum of its proper divisors (371949443226).

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

318630441834 is a wasteful number, since it uses less digits than its factorization.

318630441834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485334 (or 5485331 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 318630441834 in words is "three hundred eighteen billion, six hundred thirty million, four hundred forty-one thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 9 18 3229 6458 9687 19374 29061 58122 5482097 10964194 16446291 32892582 49338873 98677746 17701691213 35403382426 53105073639 106210147278 159315220917 318630441834