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12890307496 = 2311239765657
BaseRepresentation
bin11000000000101001…
…00111101110101000
31020021100101110122011
430000110213232220
5202344404314441
65531032005304
7634301543263
oct140024475650
936240343564
1012890307496
1155152738a0
1225b8b30834
1312a57465b1
148a3d73cda
155069d5581
hex300527ba8

12890307496 has 64 divisors (see below), whose sum is σ = 27796970880. Its totient is φ = 5546618880.

The previous prime is 12890307481. The next prime is 12890307509. The reversal of 12890307496 is 69470309821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163500 + ... + 229156.

It is an arithmetic number, because the mean of its divisors is an integer number (434327670).

Almost surely, 212890307496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12890307496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13898485440).

12890307496 is an abundant number, since it is smaller than the sum of its proper divisors (14906663384).

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

12890307496 is a wasteful number, since it uses less digits than its factorization.

12890307496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65794 (or 65790 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 12890307496 in words is "twelve billion, eight hundred ninety million, three hundred seven thousand, four hundred ninety-six".

Divisors: 1 2 4 8 11 22 23 44 46 88 92 97 184 194 253 388 506 776 1012 1067 2024 2134 2231 4268 4462 8536 8924 17848 24541 49082 65657 98164 131314 196328 262628 525256 722227 1444454 1510111 2888908 3020222 5777816 6040444 6368729 12080888 12737458 16611221 25474916 33222442 50949832 66444884 70056019 132889768 140112038 146480767 280224076 292961534 560448152 585923068 1171846136 1611288437 3222576874 6445153748 12890307496