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12672471 = 372326237
BaseRepresentation
bin110000010101…
…110111010111
3212211211100210
4300111313113
511221004341
61131340503
7212466660
oct60256727
925754323
1012672471
117176019
1242b1733
132819106
14197c367
1511a4c16
hexc15dd7

12672471 has 16 divisors (see below), whose sum is σ = 20150784. Its totient is φ = 6926304.

The previous prime is 12672467. The next prime is 12672479. The reversal of 12672471 is 17427621.

It is not a de Polignac number, because 12672471 - 22 = 12672467 is a prime.

It is a super-3 number, since 3×126724713 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12672479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12636 + ... + 13601.

It is an arithmetic number, because the mean of its divisors is an integer number (1259424).

Almost surely, 212672471 is an apocalyptic number.

12672471 is a deficient number, since it is larger than the sum of its proper divisors (7478313).

12672471 is a wasteful number, since it uses less digits than its factorization.

12672471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270.

The product of its digits is 4704, while the sum is 30.

The square root of 12672471 is about 3559.8414290527. The cubic root of 12672471 is about 233.1419557755.

The spelling of 12672471 in words is "twelve million, six hundred seventy-two thousand, four hundred seventy-one".

Divisors: 1 3 7 21 23 69 161 483 26237 78711 183659 550977 603451 1810353 4224157 12672471