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12479507886 = 232079917981
BaseRepresentation
bin10111001111101011…
…00010110110101110
31012012201101200111210
423213311202312232
5201024223223021
65422155055250
7621153031626
oct134765426656
935181350453
1012479507886
1153243a1a8a
122503441526
13123b5c34c1
1486559b886
154d08dbe76
hex2e7d62dae

12479507886 has 8 divisors (see below), whose sum is σ = 24959015784. Its totient is φ = 4159835960.

The previous prime is 12479507869. The next prime is 12479507891. The reversal of 12479507886 is 68870597421.

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

12479507886 is an admirable number.

It is a super-4 number, since 4×124795078864 (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039958985 + ... + 1039958996.

It is an arithmetic number, because the mean of its divisors is an integer number (3119876973).

Almost surely, 212479507886 is an apocalyptic number.

12479507886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12479507886 is a wasteful number, since it uses less digits than its factorization.

12479507886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079917986.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 12479507886 in words is "twelve billion, four hundred seventy-nine million, five hundred seven thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 2079917981 4159835962 6239753943 12479507886