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12032511013 = 25746819109
BaseRepresentation
bin10110011010011000…
…11000110000100101
31011001120021220002001
423031030120300211
5144120310323023
65305550245301
7604114441015
oct131514306045
934046256061
1012032511013
115115047686
1223b97b6831
131199b08703
14822081c45
154a65436ad
hex2cd318c25

12032511013 has 4 divisors (see below), whose sum is σ = 12079330380. Its totient is φ = 11985691648.

The previous prime is 12032511011. The next prime is 12032511047. The reversal of 12032511013 is 31011523021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31011523021 = 37981824599.

It can be written as a sum of positive squares in 2 ways, for example, as 5597583489 + 6434927524 = 74817^2 + 80218^2 .

It is a cyclic number.

It is not a de Polignac number, because 12032511013 - 21 = 12032511011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032511011) 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, 23409298 + ... + 23409811.

It is an arithmetic number, because the mean of its divisors is an integer number (3019832595).

Almost surely, 212032511013 is an apocalyptic number.

It is an amenable number.

12032511013 is a deficient number, since it is larger than the sum of its proper divisors (46819367).

12032511013 is an equidigital number, since it uses as much as digits as its factorization.

12032511013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46819366.

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 12032511013 in words is "twelve billion, thirty-two million, five hundred eleven thousand, thirteen".

Divisors: 1 257 46819109 12032511013