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12573553061 = 24595113279
BaseRepresentation
bin10111011010111000…
…10011000110100101
31012110021100200020102
423231130103012211
5201222312144221
65435354513445
7623404303046
oct135534230645
935407320212
1012573553061
115372496573
12252aa35885
131254c30734
14873c7c8cd
154d8cb730b
hex2ed7131a5

12573553061 has 4 divisors (see below), whose sum is σ = 12578668800. Its totient is φ = 12568437324.

The previous prime is 12573553001. The next prime is 12573553099. The reversal of 12573553061 is 16035537521.

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 12573553061 - 210 = 12573552037 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 (12573553001) 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, 2554181 + ... + 2559098.

It is an arithmetic number, because the mean of its divisors is an integer number (3144667200).

Almost surely, 212573553061 is an apocalyptic number.

It is an amenable number.

12573553061 is a deficient number, since it is larger than the sum of its proper divisors (5115739).

12573553061 is an equidigital number, since it uses as much as digits as its factorization.

12573553061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115738.

The product of its (nonzero) digits is 94500, while the sum is 38.

The spelling of 12573553061 in words is "twelve billion, five hundred seventy-three million, five hundred fifty-three thousand, sixty-one".

Divisors: 1 2459 5113279 12573553061