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56461016465 = 57101128912391
BaseRepresentation
bin110100100101010101…
…101011110110010001
312101201212100210222222
4310211111223312101
51411113010011330
641534323310425
74036104502310
oct644525536621
9171655323888
1056461016465
1121a43854387
12ab3881b415
13542a4c18a9
142a38868277
151706be50e5
hexd2556bd91

56461016465 has 32 divisors (see below), whose sum is σ = 78265889280. Its totient is φ = 38299968000.

The previous prime is 56461016419. The next prime is 56461016477.

56461016465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56461016465 - 214 = 56461000081 is a prime.

It is a super-2 number, since 2×564610164652 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4550420 + ... + 4562810.

It is an arithmetic number, because the mean of its divisors is an integer number (2445809040).

Almost surely, 256461016465 is an apocalyptic number.

It is an amenable number.

56461016465 is a deficient number, since it is larger than the sum of its proper divisors (21804872815).

56461016465 is a wasteful number, since it uses less digits than its factorization.

56461016465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13793.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 56461016465 in words is "fifty-six billion, four hundred sixty-one million, sixteen thousand, four hundred sixty-five".

Divisors: 1 5 7 35 101 505 707 1289 3535 6445 9023 12391 45115 61955 86737 130189 433685 650945 911323 1251491 4556615 6257455 8760437 15971999 43802185 79859995 111803993 559019965 1613171899 8065859495 11292203293 56461016465