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318880056321 = 321913991332949
BaseRepresentation
bin1001010001111101011…
…10111000010000000001
31010111002022002021002100
410220332232320100001
520211031243300241
6402254054141013
732016100520331
oct4507656702001
91114068067070
10318880056321
1111326652a032
1251974351769
13240bb491c78
14116107b70c1
158464e549b6
hex4a3ebb8401

318880056321 has 24 divisors (see below), whose sum is σ = 485193800000. Its totient is φ = 201253820832.

The previous prime is 318880056217. The next prime is 318880056347. The reversal of 318880056321 is 123650088813.

318880056321 is a `hidden beast` number, since 3 + 1 + 8 + 8 + 8 + 0 + 0 + 5 + 632 + 1 = 666.

It is not a de Polignac number, because 318880056321 - 210 = 318880055297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (318880052321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427246 + ... + 905703.

Almost surely, 2318880056321 is an apocalyptic number.

It is an amenable number.

318880056321 is a deficient number, since it is larger than the sum of its proper divisors (166313743679).

318880056321 is a wasteful number, since it uses less digits than its factorization.

318880056321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334373 (or 1334370 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 318880056321 in words is "three hundred eighteen billion, eight hundred eighty million, fifty-six thousand, three hundred twenty-one".

Divisors: 1 3 9 19 57 171 1399 4197 12591 26581 79743 239229 1332949 3998847 11996541 25326031 75978093 227934279 1864795651 5594386953 16783160859 35431117369 106293352107 318880056321