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12312730607 = 171922777243
BaseRepresentation
bin10110111011110010…
…10101101111101111
31011210002120112002112
423131321111233233
5200204024334412
65353440314235
7614056324532
oct133571255757
934702515075
1012312730607
115249240821
12247761297b
131212b9c018
1484b386a19
154c0e46722
hex2dde55bef

12312730607 has 24 divisors (see below), whose sum is σ = 13810859856. Its totient is φ = 10937389824.

The previous prime is 12312730597. The next prime is 12312730613. The reversal of 12312730607 is 70603721321.

It is not a de Polignac number, because 12312730607 - 218 = 12312468463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312730667) 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, 1696328 + ... + 1703570.

It is an arithmetic number, because the mean of its divisors is an integer number (575452494).

Almost surely, 212312730607 is an apocalyptic number.

12312730607 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12312730607 is a deficient number, since it is larger than the sum of its proper divisors (1498129249).

12312730607 is a wasteful number, since it uses less digits than its factorization.

12312730607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7556 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The spelling of 12312730607 in words is "twelve billion, three hundred twelve million, seven hundred thirty thousand, six hundred seven".

Divisors: 1 17 19 277 323 361 4709 5263 6137 7243 89471 99997 123131 137617 1699949 2006311 2339489 2614723 34107287 38119909 44450291 648038453 724278271 12312730607