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12671617 = 710131787
BaseRepresentation
bin110000010101…
…101010000001
3212211210012011
4300111222001
511220442432
61131332521
7212464330
oct60255201
925753164
1012671617
117175412
1242b1141
1328188ca
14197bd17
1511a4847
hexc15a81

12671617 has 8 divisors (see below), whose sum is σ = 14504256. Its totient is φ = 10844592.

The previous prime is 12671609. The next prime is 12671621. The reversal of 12671617 is 71617621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12671617 - 23 = 12671609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12671677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6198 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (1813032).

Almost surely, 212671617 is an apocalyptic number.

It is an amenable number.

12671617 is a deficient number, since it is larger than the sum of its proper divisors (1832639).

12671617 is a wasteful number, since it uses less digits than its factorization.

12671617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807.

The product of its digits is 3528, while the sum is 31.

The square root of 12671617 is about 3559.7214778687. The cubic root of 12671617 is about 233.1367184990.

The spelling of 12671617 in words is "twelve million, six hundred seventy-one thousand, six hundred seventeen".

Divisors: 1 7 1013 1787 7091 12509 1810231 12671617