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12626139 = 337113749
BaseRepresentation
bin110000001010…
…100011011011
3212202110210210
4300022203123
511213014024
61130342203
7212214621
oct60124333
925673723
1012626139
117144229
12428a963
132800cb6
141969511
151196129
hexc0a8db

12626139 has 8 divisors (see below), whose sum is σ = 17290000. Its totient is φ = 8189856.

The previous prime is 12626129. The next prime is 12626147. The reversal of 12626139 is 93162621.

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

It is not a de Polignac number, because 12626139 - 213 = 12617947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12626129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56764 + ... + 56985.

It is an arithmetic number, because the mean of its divisors is an integer number (2161250).

Almost surely, 212626139 is an apocalyptic number.

12626139 is a deficient number, since it is larger than the sum of its proper divisors (4663861).

12626139 is a wasteful number, since it uses less digits than its factorization.

12626139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113789.

The product of its digits is 3888, while the sum is 30.

The square root of 12626139 is about 3553.3278767938. The cubic root of 12626139 is about 232.8574776005.

The spelling of 12626139 in words is "twelve million, six hundred twenty-six thousand, one hundred thirty-nine".

Divisors: 1 3 37 111 113749 341247 4208713 12626139