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12530375707 = 97129179131
BaseRepresentation
bin10111010101101111…
…00101110000011011
31012100021010001001011
423222313211300123
5201130234010312
65431213234351
7622341302413
oct135267456033
935307101034
1012530375707
115350085803
1225184929b7
131248cc38c5
1486c23d643
154d50d8da7
hex2eade5c1b

12530375707 has 4 divisors (see below), whose sum is σ = 12659554936. Its totient is φ = 12401196480.

The previous prime is 12530375659. The next prime is 12530375719. The reversal of 12530375707 is 70757303521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12530375707 - 27 = 12530375579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12530375707.

It is not an unprimeable number, because it can be changed into a prime (12530375747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64589469 + ... + 64589662.

It is an arithmetic number, because the mean of its divisors is an integer number (3164888734).

Almost surely, 212530375707 is an apocalyptic number.

12530375707 is a deficient number, since it is larger than the sum of its proper divisors (129179229).

12530375707 is an equidigital number, since it uses as much as digits as its factorization.

12530375707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129179228.

The product of its (nonzero) digits is 154350, while the sum is 40.

The spelling of 12530375707 in words is "twelve billion, five hundred thirty million, three hundred seventy-five thousand, seven hundred seven".

Divisors: 1 97 129179131 12530375707