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51130240544364 = 22317250638434041
BaseRepresentation
bin10111010000000101011111…
…10100110010111001101100
320201001000002101010212002020
423220002233310302321230
523200204213034404424
6300424524102430140
713525016011505052
oct1350025764627154
9221030071125066
1051130240544364
1115323238908703
125899472132350
13226b73a674b87
14c8aa070541d2
155da035402079
hex2e80afd32e6c

51130240544364 has 24 divisors (see below), whose sum is σ = 126321770757168. Its totient is φ = 16040859778560.

The previous prime is 51130240544323. The next prime is 51130240544431. The reversal of 51130240544364 is 46344504203115.

It is a super-2 number, since 2×511302405443642 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125319216817 + ... + 125319217224.

It is an arithmetic number, because the mean of its divisors is an integer number (5263407114882).

Almost surely, 251130240544364 is an apocalyptic number.

It is an amenable number.

51130240544364 is an abundant number, since it is smaller than the sum of its proper divisors (75191530212804).

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

51130240544364 is a wasteful number, since it uses less digits than its factorization.

51130240544364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250638434065 (or 250638434063 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 51130240544364 its reverse (46344504203115), we get a palindrome (97474744747479).

The spelling of 51130240544364 in words is "fifty-one trillion, one hundred thirty billion, two hundred forty million, five hundred forty-four thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 250638434041 501276868082 751915302123 1002553736164 1503830604246 3007661208492 4260853378697 8521706757394 12782560136091 17043413514788 25565120272182 51130240544364