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12157179052031 = 136556314263649
BaseRepresentation
bin1011000011101001000001…
…0101101011111111111111
31121001012210201012020122222
42300322100111223333333
53043140400314131111
641504533030355555
72363220141632426
oct260722025537777
947035721166588
1012157179052031
113967915702002
1214441867bbbbb
136a25563a6510
143005a69b82bd
15161381dd67db
hexb0e9056bfff

12157179052031 has 8 divisors (see below), whose sum is σ = 13092547280400. Its totient is φ = 11221839482112.

The previous prime is 12157179051961. The next prime is 12157179052063. The reversal of 12157179052031 is 13025097175121.

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

It is a cyclic number.

It is not a de Polignac number, because 12157179052031 - 214 = 12157179035647 is a prime.

It is a super-2 number, since 2×121571790520312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157179082031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6279506 + ... + 7984143.

It is an arithmetic number, because the mean of its divisors is an integer number (1636568410050).

Almost surely, 212157179052031 is an apocalyptic number.

12157179052031 is a deficient number, since it is larger than the sum of its proper divisors (935368228369).

12157179052031 is a wasteful number, since it uses less digits than its factorization.

12157179052031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14329225.

The product of its (nonzero) digits is 132300, while the sum is 44.

The spelling of 12157179052031 in words is "twelve trillion, one hundred fifty-seven billion, one hundred seventy-nine million, fifty-two thousand, thirty-one".

Divisors: 1 13 65563 852319 14263649 185427437 935167619387 12157179052031