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12712255029 = 321412472781
BaseRepresentation
bin10111101011011010…
…11001111000110101
31012210221100110120100
423311231121320311
5202013314130104
65501231424313
7630010246005
oct136555317065
935727313510
1012712255029
1154338113a1
122569385099
1312778a4cc6
14888466005
154e6064139
hex2f5b59e35

12712255029 has 6 divisors (see below), whose sum is σ = 18362146166. Its totient is φ = 8474836680.

The previous prime is 12712255021. The next prime is 12712255051. The reversal of 12712255029 is 92055221721.

12712255029 is a `hidden beast` number, since 1 + 27 + 122 + 5 + 502 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12112103025 + 600152004 = 110055^2 + 24498^2 .

It is not a de Polignac number, because 12712255029 - 23 = 12712255021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12712254984 and 12712255002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712255021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 706236382 + ... + 706236399.

Almost surely, 212712255029 is an apocalyptic number.

It is an amenable number.

12712255029 is a deficient number, since it is larger than the sum of its proper divisors (5649891137).

12712255029 is a wasteful number, since it uses less digits than its factorization.

12712255029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412472787 (or 1412472784 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 12712255029 in words is "twelve billion, seven hundred twelve million, two hundred fifty-five thousand, twenty-nine".

Divisors: 1 3 9 1412472781 4237418343 12712255029