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12572011604 = 22109160917921
BaseRepresentation
bin10111011010101100…
…11010110001010100
31012110011110100202102
423231112122301110
5201221413332404
65435301501232
7623355223025
oct135526326124
935404410672
1012572011604
115371633439
12252a411818
131254810c29
1487399ac4c
154d8ab071e
hex2ed59ac54

12572011604 has 24 divisors (see below), whose sum is σ = 22217903400. Its totient is φ = 6224117760.

The previous prime is 12572011579. The next prime is 12572011631. The reversal of 12572011604 is 40611027521.

It can be written as a sum of positive squares in 4 ways, for example, as 2652250000 + 9919761604 = 51500^2 + 99598^2 .

It is a super-2 number, since 2×125720116042 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692564 + ... + 710484.

It is an arithmetic number, because the mean of its divisors is an integer number (925745975).

Almost surely, 212572011604 is an apocalyptic number.

It is an amenable number.

12572011604 is a deficient number, since it is larger than the sum of its proper divisors (9645891796).

12572011604 is a wasteful number, since it uses less digits than its factorization.

12572011604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19643 (or 19641 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 12572011604 in words is "twelve billion, five hundred seventy-two million, eleven thousand, six hundred four".

Divisors: 1 2 4 109 218 436 1609 3218 6436 17921 35842 71684 175381 350762 701524 1953389 3906778 7813556 28834889 57669778 115339556 3143002901 6286005802 12572011604