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13412139 = 313343901
BaseRepresentation
bin110011001010…
…011100101011
3221020101222220
4303022130223
511413142024
61155245123
7222000306
oct63123453
927211886
1013412139
117630814
1245a97a3
132a179a0
141ad1b3d
15129de79
hexcca72b

13412139 has 8 divisors (see below), whose sum is σ = 19258512. Its totient is φ = 8253600.

The previous prime is 13412137. The next prime is 13412143. The reversal of 13412139 is 93121431.

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

It is not a de Polignac number, because 13412139 - 21 = 13412137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13412137) 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, 171912 + ... + 171989.

It is an arithmetic number, because the mean of its divisors is an integer number (2407314).

Almost surely, 213412139 is an apocalyptic number.

13412139 is a deficient number, since it is larger than the sum of its proper divisors (5846373).

13412139 is a wasteful number, since it uses less digits than its factorization.

13412139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343917.

The product of its digits is 648, while the sum is 24.

The square root of 13412139 is about 3662.2587292544. The cubic root of 13412139 is about 237.5924751610.

The spelling of 13412139 in words is "thirteen million, four hundred twelve thousand, one hundred thirty-nine".

Divisors: 1 3 13 39 343901 1031703 4470713 13412139