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12671407 = 714912149
BaseRepresentation
bin110000010101…
…100110101111
3212211202220101
4300111212233
511220441112
61131331531
7212463610
oct60254657
925752811
1012671407
117175241
1242b0ba7
132818798
14197bc07
1511a4757
hexc159af

12671407 has 8 divisors (see below), whose sum is σ = 14580000. Its totient is φ = 10787424.

The previous prime is 12671389. The next prime is 12671431. The reversal of 12671407 is 70417621.

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 12671407 - 223 = 4282799 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 (12671437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5032 + ... + 7117.

It is an arithmetic number, because the mean of its divisors is an integer number (1822500).

Almost surely, 212671407 is an apocalyptic number.

12671407 is a deficient number, since it is larger than the sum of its proper divisors (1908593).

12671407 is a wasteful number, since it uses less digits than its factorization.

12671407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12305.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 12671407 is about 3559.6919810568. The cubic root of 12671407 is about 233.1354306081.

The spelling of 12671407 in words is "twelve million, six hundred seventy-one thousand, four hundred seven".

Divisors: 1 7 149 1043 12149 85043 1810201 12671407