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12679872342 = 236731541971
BaseRepresentation
bin10111100111100011…
…10111111101010110
31012201200102020212120
423303301313331112
5201432021403332
65454113400410
7626135064564
oct136361677526
935650366776
1012679872342
115417503845
12255a569106
131270c77657
14884036a34
154e32b932c
hex2f3c77f56

12679872342 has 16 divisors (see below), whose sum is σ = 25738249152. Its totient is φ = 4163540040.

The previous prime is 12679872341. The next prime is 12679872347. The reversal of 12679872342 is 24327897621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12679872341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15770584 + ... + 15771387.

It is an arithmetic number, because the mean of its divisors is an integer number (1608640572).

Almost surely, 212679872342 is an apocalyptic number.

12679872342 is an abundant number, since it is smaller than the sum of its proper divisors (13058376810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12679872342 is a wasteful number, since it uses less digits than its factorization.

12679872342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31542043.

The product of its digits is 2032128, while the sum is 51.

The spelling of 12679872342 in words is "twelve billion, six hundred seventy-nine million, eight hundred seventy-two thousand, three hundred forty-two".

Divisors: 1 2 3 6 67 134 201 402 31541971 63083942 94625913 189251826 2113312057 4226624114 6339936171 12679872342