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52531061445 = 3255871988683
BaseRepresentation
bin110000111011000110…
…000110001011000101
312000120222110102012100
4300323012012023011
51330040422431240
640044334542313
73536524440432
oct607306061305
9160528412170
1052531061445
1120307461a75
12a220667999
134c52256315
142784948b89
151576ba8e30
hexc3b1862c5

52531061445 has 24 divisors (see below), whose sum is σ = 91209002976. Its totient is φ = 27968823648.

The previous prime is 52531061423. The next prime is 52531061467. The reversal of 52531061445 is 54416013525.

52531061445 is a `hidden beast` number, since 5 + 2 + 5 + 31 + 0 + 614 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (52531061423) and next prime (52531061467).

It is not a de Polignac number, because 52531061445 - 26 = 52531061381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 967927 + ... + 1020756.

It is an arithmetic number, because the mean of its divisors is an integer number (3800375124).

Almost surely, 252531061445 is an apocalyptic number.

It is an amenable number.

52531061445 is a deficient number, since it is larger than the sum of its proper divisors (38677941531).

52531061445 is a wasteful number, since it uses less digits than its factorization.

52531061445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989281 (or 1989278 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 52531061445 in words is "fifty-two billion, five hundred thirty-one million, sixty-one thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 45 587 1761 2935 5283 8805 26415 1988683 5966049 9943415 17898147 29830245 89490735 1167356921 3502070763 5836784605 10506212289 17510353815 52531061445