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321054313657 = 71129789139969
BaseRepresentation
bin1001010110000000101…
…01000000110010111001
31010200200211022222102211
410223000111000302321
520230004401014112
6403253524055121
732124011432110
oct4530025006271
91120624288384
10321054313657
11114181876820
12522805344a1
1324376a7c37c
1411779472c77
158540c890a7
hex4ac0540cb9

321054313657 has 16 divisors (see below), whose sum is σ = 400291804800. Its totient is φ = 250162007040.

The previous prime is 321054313639. The next prime is 321054313691. The reversal of 321054313657 is 756313450123.

It is a de Polignac number, because none of the positive numbers 2k-321054313657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321054313757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2223769 + ... + 2363737.

It is an arithmetic number, because the mean of its divisors is an integer number (25018237800).

Almost surely, 2321054313657 is an apocalyptic number.

It is an amenable number.

321054313657 is a deficient number, since it is larger than the sum of its proper divisors (79237491143).

321054313657 is a wasteful number, since it uses less digits than its factorization.

321054313657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169776.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 321054313657 in words is "three hundred twenty-one billion, fifty-four million, three hundred thirteen thousand, six hundred fifty-seven".

Divisors: 1 7 11 77 29789 139969 208523 327679 979783 1539659 2293753 10777613 4169536541 29186755787 45864901951 321054313657