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12046978113 = 3211138113781
BaseRepresentation
bin10110011100000111…
…00100110001000001
31011002120111220012120
423032003210301001
5144133011244423
65311224314453
7604351424112
oct131603446101
934076456176
1012046978113
115122228a65
122402612a29
13119cb02621
14823d6a209
154a794eee3
hex2ce0e4c41

12046978113 has 16 divisors (see below), whose sum is σ = 16151621952. Its totient is φ = 7986888000.

The previous prime is 12046978091. The next prime is 12046978123. The reversal of 12046978113 is 31187964021.

It is a happy number.

It is not a de Polignac number, because 12046978113 - 26 = 12046978049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12046978123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867283 + ... + 881063.

It is an arithmetic number, because the mean of its divisors is an integer number (1009476372).

Almost surely, 212046978113 is an apocalyptic number.

It is an amenable number.

12046978113 is a deficient number, since it is larger than the sum of its proper divisors (4104643839).

12046978113 is a wasteful number, since it uses less digits than its factorization.

12046978113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15376.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 12046978113 in words is "twelve billion, forty-six million, nine hundred seventy-eight thousand, one hundred thirteen".

Divisors: 1 3 211 633 1381 4143 13781 41343 291391 874173 2907791 8723373 19031561 57094683 4015659371 12046978113