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13765466456731 = 1123183292968463
BaseRepresentation
bin1100100001010000010110…
…1111010000001010011011
31210201222002000200111200001
43020110011233100022123
53301013133403103411
645135433515153431
72620344043210303
oct310240557201233
953658060614601
1013765466456731
1144279a0a4a290
121663a0aa45877
1378b102250502
14358375bc4603
1518d110d37dc1
hexc8505bd029b

13765466456731 has 16 divisors (see below), whose sum is σ = 15670640194560. Its totient is φ = 11969313737920.

The previous prime is 13765466456713. The next prime is 13765466456747.

13765466456731 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-13765466456731 is a prime.

It is a super-2 number, since 2×137654664567312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13765466426731) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3153006 + ... + 6121468.

It is an arithmetic number, because the mean of its divisors is an integer number (979415012160).

Almost surely, 213765466456731 is an apocalyptic number.

13765466456731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13765466456731 is a deficient number, since it is larger than the sum of its proper divisors (1905173737829).

13765466456731 is a wasteful number, since it uses less digits than its factorization.

13765466456731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986826.

The product of its digits is 228614400, while the sum is 64.

The spelling of 13765466456731 in words is "thirteen trillion, seven hundred sixty-five billion, four hundred sixty-six million, four hundred fifty-six thousand, seven hundred thirty-one".

Divisors: 1 11 23 253 18329 201619 421567 2968463 4637237 32653093 68274649 751021139 54408958327 598498541597 1251406041521 13765466456731