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52739276891 = 75922518623
BaseRepresentation
bin110001000111100000…
…011000000001011011
312001010111020212002112
4301013200120001123
51331002223330031
640121133422535
73544633312520
oct610740300133
9161114225075
1052739276891
1120403a46354
12a27a33aa4b
134c86428b22
1427a4469147
15158a0d762b
hexc4781805b

52739276891 has 24 divisors (see below), whose sum is σ = 61563769344. Its totient is φ = 44256726000.

The previous prime is 52739276881. The next prime is 52739276903. The reversal of 52739276891 is 19867293725.

It is not a de Polignac number, because 52739276891 - 218 = 52739014747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a self number, because there is not a number n which added to its sum of digits gives 52739276891.

It is not an unprimeable number, because it can be changed into a prime (52739276881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6111806 + ... + 6120428.

It is an arithmetic number, because the mean of its divisors is an integer number (2565157056).

Almost surely, 252739276891 is an apocalyptic number.

52739276891 is a deficient number, since it is larger than the sum of its proper divisors (8824492453).

52739276891 is an equidigital number, since it uses as much as digits as its factorization.

52739276891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999 (or 8940 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 59.

The spelling of 52739276891 in words is "fifty-two billion, seven hundred thirty-nine million, two hundred seventy-six thousand, eight hundred ninety-one".

Divisors: 1 7 59 251 413 1757 3481 8623 14809 24367 60361 103663 508757 873731 2164373 3561299 6116117 15150611 30016663 127698007 210116641 893886049 7534182413 52739276891