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12401120867 = 3112715720063
BaseRepresentation
bin10111000110010101…
…00001011001100011
31012000020220012201212
423203022201121203
5200344141331432
65410315020335
7616211534222
oct134312413143
935006805655
1012401120867
115294122723
1224a113a6ab
1312282a9355
14858dd4cb9
154c8aa62b2
hex2e32a1663

12401120867 has 16 divisors (see below), whose sum is σ = 12984778752. Its totient is φ = 11830160160.

The previous prime is 12401120863. The next prime is 12401120869. The reversal of 12401120867 is 76802110421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12401120867 - 22 = 12401120863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401120863) 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, 608078 + ... + 628140.

It is an arithmetic number, because the mean of its divisors is an integer number (811548672).

Almost surely, 212401120867 is an apocalyptic number.

12401120867 is a deficient number, since it is larger than the sum of its proper divisors (583657885).

12401120867 is a wasteful number, since it uses less digits than its factorization.

12401120867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20378.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 12401120867 in words is "twelve billion, four hundred one million, one hundred twenty thousand, eight hundred sixty-seven".

Divisors: 1 31 127 157 3937 4867 19939 20063 618109 621953 2548001 3149891 78988031 97646621 400036157 12401120867