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12671995 = 57794583
BaseRepresentation
bin110000010101…
…101111111011
3212211210201011
4300111233323
511221000440
61131334351
7212465410
oct60255773
925753634
1012671995
117175726
1242b13b7
132818b2b
14197c107
1511a49ea
hexc15bfb

12671995 has 16 divisors (see below), whose sum is σ = 17602560. Its totient is φ = 8577504.

The previous prime is 12671969. The next prime is 12672007. The reversal of 12671995 is 59917621.

It is not a de Polignac number, because 12671995 - 213 = 12663803 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474 + ... + 5056.

It is an arithmetic number, because the mean of its divisors is an integer number (1100160).

Almost surely, 212671995 is an apocalyptic number.

12671995 is a deficient number, since it is larger than the sum of its proper divisors (4930565).

12671995 is an equidigital number, since it uses as much as digits as its factorization.

12671995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674.

The product of its digits is 34020, while the sum is 40.

The square root of 12671995 is about 3559.7745715143. The cubic root of 12671995 is about 233.1390366668.

The spelling of 12671995 in words is "twelve million, six hundred seventy-one thousand, nine hundred ninety-five".

Divisors: 1 5 7 35 79 395 553 2765 4583 22915 32081 160405 362057 1810285 2534399 12671995