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12760139 = 72260411
BaseRepresentation
bin110000101011…
…010001001011
3220000021121202
4300223101023
511231311024
61133254415
7213313400
oct60532113
926007552
1012760139
117225977
12433440b
132849ca2
1419a22a7
1511c0bae
hexc2b44b

12760139 has 6 divisors (see below), whose sum is σ = 14843484. Its totient is φ = 10937220.

The previous prime is 12760133. The next prime is 12760151. The reversal of 12760139 is 93106721.

It is not a de Polignac number, because 12760139 - 24 = 12760123 is a prime.

It is a super-2 number, since 2×127601392 = 325642294598642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12760133) 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 5 ways as a sum of consecutive naturals, for example, 130157 + ... + 130254.

It is an arithmetic number, because the mean of its divisors is an integer number (2473914).

Almost surely, 212760139 is an apocalyptic number.

12760139 is a deficient number, since it is larger than the sum of its proper divisors (2083345).

12760139 is an equidigital number, since it uses as much as digits as its factorization.

12760139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260425 (or 260418 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12760139 is about 3572.1336761101. The cubic root of 12760139 is about 233.6783451620.

The spelling of 12760139 in words is "twelve million, seven hundred sixty thousand, one hundred thirty-nine".

Divisors: 1 7 49 260411 1822877 12760139