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12054407953 = 71722058279
BaseRepresentation
bin10110011100111111…
…11010101100010001
31011010002111101000211
423032133322230101
5144141412023303
65312051444121
7604501530340
oct131637725421
934102441024
1012054407953
115126443125
122404bb6641
1311a1504393
14824d41b57
154a841b66d
hex2ce7fab11

12054407953 has 4 divisors (see below), whose sum is σ = 13776466240. Its totient is φ = 10332349668.

The previous prime is 12054407951. The next prime is 12054407987. The reversal of 12054407953 is 35970445021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12054407953 - 21 = 12054407951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12054407951) 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, 861029133 + ... + 861029146.

It is an arithmetic number, because the mean of its divisors is an integer number (3444116560).

Almost surely, 212054407953 is an apocalyptic number.

It is an amenable number.

12054407953 is a deficient number, since it is larger than the sum of its proper divisors (1722058287).

12054407953 is an equidigital number, since it uses as much as digits as its factorization.

12054407953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722058286.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 12054407953 in words is "twelve billion, fifty-four million, four hundred seven thousand, nine hundred fifty-three".

Divisors: 1 7 1722058279 12054407953