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12597343923 = 331521259991
BaseRepresentation
bin10111011101101110…
…00011011010110011
31012111221010101011110
423232313003122303
5201244410001143
65442004444403
7624113441133
oct135667033263
935457111143
1012597343923
115384965a3a
1225369a9703
131259b40478
148770b2ac3
154dae16533
hex2eedc36b3

12597343923 has 16 divisors (see below), whose sum is σ = 17371625472. Its totient is φ = 8111688000.

The previous prime is 12597343921. The next prime is 12597343933. The reversal of 12597343923 is 32934379521.

It is not a de Polignac number, because 12597343923 - 21 = 12597343921 is a prime.

It is a super-3 number, since 3×125973439233 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12597343921) 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, 81543 + ... + 178448.

It is an arithmetic number, because the mean of its divisors is an integer number (1085726592).

Almost surely, 212597343923 is an apocalyptic number.

12597343923 is a deficient number, since it is larger than the sum of its proper divisors (4774281549).

12597343923 is a wasteful number, since it uses less digits than its factorization.

12597343923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260546.

The product of its digits is 1224720, while the sum is 48.

The spelling of 12597343923 in words is "twelve billion, five hundred ninety-seven million, three hundred forty-three thousand, nine hundred twenty-three".

Divisors: 1 3 31 93 521 1563 16151 48453 259991 779973 8059721 24179163 135455311 406365933 4199114641 12597343923