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12671129 = 44328603
BaseRepresentation
bin110000010101…
…100010011001
3212211202112002
4300111202121
511220434004
61131330345
7212463032
oct60254231
925752462
1012671129
117175009
1242b09b5
132818613
14197ba89
1511a461e
hexc15899

12671129 has 4 divisors (see below), whose sum is σ = 12700176. Its totient is φ = 12642084.

The previous prime is 12671123. The next prime is 12671161. The reversal of 12671129 is 92117621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92117621 = 661139361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12671129 is a prime.

It is a super-3 number, since 3×126711293 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12671123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13859 + ... + 14744.

It is an arithmetic number, because the mean of its divisors is an integer number (3175044).

Almost surely, 212671129 is an apocalyptic number.

It is an amenable number.

12671129 is a deficient number, since it is larger than the sum of its proper divisors (29047).

12671129 is an equidigital number, since it uses as much as digits as its factorization.

12671129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29046.

The product of its digits is 1512, while the sum is 29.

The square root of 12671129 is about 3559.6529325202. The cubic root of 12671129 is about 233.1337256639.

The spelling of 12671129 in words is "twelve million, six hundred seventy-one thousand, one hundred twenty-nine".

Divisors: 1 443 28603 12671129