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12601117112 = 231575139639
BaseRepresentation
bin10111011110001010…
…11100100110111000
31012112012020002000012
423233011130212320
5201301341221422
65442221401052
7624160504523
oct135705344670
935465202005
1012601117112
115387002881
122538109188
13125a861a1c
148777b5bba
154db40e4e2
hex2ef15c9b8

12601117112 has 8 divisors (see below), whose sum is σ = 23627094600. Its totient is φ = 6300558552.

The previous prime is 12601117103. The next prime is 12601117147. The reversal of 12601117112 is 21171110621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 787569812 + ... + 787569827.

It is an arithmetic number, because the mean of its divisors is an integer number (2953386825).

Almost surely, 212601117112 is an apocalyptic number.

It is an amenable number.

12601117112 is a deficient number, since it is larger than the sum of its proper divisors (11025977488).

12601117112 is a wasteful number, since it uses less digits than its factorization.

12601117112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575139645 (or 1575139641 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 23.

Adding to 12601117112 its reverse (21171110621), we get a palindrome (33772227733).

The spelling of 12601117112 in words is "twelve billion, six hundred one million, one hundred seventeen thousand, one hundred twelve".

Divisors: 1 2 4 8 1575139639 3150279278 6300558556 12601117112