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316985921040 = 24351320774671
BaseRepresentation
bin1001001110011011101…
…01010100111000010000
31010022012021221012221210
410213031311110320100
520143141343433130
6401342112220120
731621130605125
oct4471565247020
91108167835853
10316985921040
1111248431a178
1251525b3a640
1323b78c32969
14114b0dd874c
1583a3a045b0
hex49cdd54e10

316985921040 has 40 divisors (see below), whose sum is σ = 982656355968. Its totient is φ = 84529578880.

The previous prime is 316985921003. The next prime is 316985921099. The reversal of 316985921040 is 40129589613.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×3169859210402 (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660387096 + ... + 660387575.

Almost surely, 2316985921040 is an apocalyptic number.

316985921040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

316985921040 is an abundant number, since it is smaller than the sum of its proper divisors (665670434928).

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

316985921040 is a wasteful number, since it uses less digits than its factorization.

316985921040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320774687 (or 1320774681 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 316985921040 in words is "three hundred sixteen billion, nine hundred eighty-five million, nine hundred twenty-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1320774671 2641549342 3962324013 5283098684 6603873355 7924648026 10566197368 13207746710 15849296052 19811620065 21132394736 26415493420 31698592104 39623240130 52830986840 63397184208 79246480260 105661973680 158492960520 316985921040