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12432146657 = 72087385087
BaseRepresentation
bin10111001010000001…
…11000000011100001
31012002102021111010012
423211000320003201
5200430112143112
65413344014305
7620036334350
oct134500700341
935072244105
1012432146657
1152aa693877
1224ab601395
1312318501c8
1485d18d997
154cb684022
hex2e50380e1

12432146657 has 8 divisors (see below), whose sum is σ = 14209015296. Its totient is φ = 10655489952.

The previous prime is 12432146651. The next prime is 12432146681. The reversal of 12432146657 is 75664123421.

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

It is a cyclic number.

It is not a de Polignac number, because 12432146657 - 24 = 12432146641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12432146651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103568 + ... + 188654.

It is an arithmetic number, because the mean of its divisors is an integer number (1776126912).

Almost surely, 212432146657 is an apocalyptic number.

It is an amenable number.

12432146657 is a deficient number, since it is larger than the sum of its proper divisors (1776868639).

12432146657 is an equidigital number, since it uses as much as digits as its factorization.

12432146657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105967.

The product of its digits is 241920, while the sum is 41.

The spelling of 12432146657 in words is "twelve billion, four hundred thirty-two million, one hundred forty-six thousand, six hundred fifty-seven".

Divisors: 1 7 20873 85087 146111 595609 1776020951 12432146657