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79131199488 = 2113111170857
BaseRepresentation
bin100100110110010010…
…1100100100000000000
321120020210022102202020
41021230211210200000
52244030041340423
6100204040121440
75500642045335
oct1115445444000
9246223272666
1079131199488
1130617554430
1213404a66280
137601143383
143b8962098c
1520d20a64e3
hex126c964800

79131199488 has 96 divisors (see below), whose sum is σ = 230143848480. Its totient is φ = 23979130880.

The previous prime is 79131199471. The next prime is 79131199507. The reversal of 79131199488 is 88499113197.

It is a tau number, because it is divible by the number of its divisors (96).

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, 517845 + ... + 653012.

It is an arithmetic number, because the mean of its divisors is an integer number (2397331755).

Almost surely, 279131199488 is an apocalyptic number.

It is an amenable number.

79131199488 is an abundant number, since it is smaller than the sum of its proper divisors (151012648992).

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

79131199488 is a wasteful number, since it uses less digits than its factorization.

79131199488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170893 (or 1170873 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 60.

The spelling of 79131199488 in words is "seventy-nine billion, one hundred thirty-one million, one hundred ninety-nine thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1024 1056 1408 1536 2048 2112 2816 3072 4224 5632 6144 8448 11264 16896 22528 33792 67584 1170857 2341714 3512571 4683428 7025142 9366856 12879427 14050284 18733712 25758854 28100568 37467424 38638281 51517708 56201136 74934848 77276562 103035416 112402272 149869696 154553124 206070832 224804544 299739392 309106248 412141664 449609088 599478784 618212496 824283328 899218176 1198957568 1236424992 1648566656 1798436352 2397915136 2472849984 3297133312 3596872704 4945699968 6594266624 7193745408 9891399936 13188533248 19782799872 26377066496 39565599744 79131199488