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65131642060 = 2253256582103
BaseRepresentation
bin111100101010001001…
…011111110011001100
320020010010200020021021
4330222021133303030
52031342200021220
645530541043524
74464010552162
oct745211376314
9206103606237
1065131642060
1125693128761
12107585565a4
1361ac95aa94
14321c221232
151a6300e4aa
hexf2a25fccc

65131642060 has 12 divisors (see below), whose sum is σ = 136776448368. Its totient is φ = 26052656816.

The previous prime is 65131642031. The next prime is 65131642091. The reversal of 65131642060 is 6024613156.

It is a super-2 number, since 2×651316420602 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628291032 + ... + 1628291071.

It is an arithmetic number, because the mean of its divisors is an integer number (11398037364).

Almost surely, 265131642060 is an apocalyptic number.

It is an amenable number.

65131642060 is an abundant number, since it is smaller than the sum of its proper divisors (71644806308).

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

65131642060 is a wasteful number, since it uses less digits than its factorization.

65131642060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256582112 (or 3256582110 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 65131642060 in words is "sixty-five billion, one hundred thirty-one million, six hundred forty-two thousand, sixty".

Divisors: 1 2 4 5 10 20 3256582103 6513164206 13026328412 16282910515 32565821030 65131642060