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12716667243 = 3272923329873
BaseRepresentation
bin10111101011111100…
…01111000101101011
31012211020122121222200
423311332033011223
5202020431322433
65501510151243
7630062613420
oct136576170553
935736577880
1012716667243
115436255355
12256a952523
13127878b397
14888c93d47
154e6636613
hex2f5f8f16b

12716667243 has 48 divisors (see below), whose sum is σ = 21810409920. Its totient is φ = 6985746432.

The previous prime is 12716667239. The next prime is 12716667277. The reversal of 12716667243 is 34276661721.

It is not a de Polignac number, because 12716667243 - 22 = 12716667239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12716667203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410755 + ... + 440627.

It is an arithmetic number, because the mean of its divisors is an integer number (454383540).

Almost surely, 212716667243 is an apocalyptic number.

12716667243 is a deficient number, since it is larger than the sum of its proper divisors (9093742677).

12716667243 is a wasteful number, since it uses less digits than its factorization.

12716667243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30148 (or 30145 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 12716667243 in words is "twelve billion, seven hundred sixteen million, six hundred sixty-seven thousand, two hundred forty-three".

Divisors: 1 3 7 9 21 29 63 87 203 233 261 609 699 1631 1827 2097 4893 6757 14679 20271 29873 47299 60813 89619 141897 209111 268857 425691 627333 866317 1881999 2598951 6064219 6960409 7796853 18192657 20881227 48722863 54577971 62643681 146168589 201851861 438505767 605555583 1412963027 1816666749 4238889081 12716667243