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23126560 = 255144541
BaseRepresentation
bin101100000111…
…0001000100000
31121111221200021
41120032020200
521410022220
62143403224
7400400242
oct130161040
947457607
1023126560
1112066366
1278b3514
134a39572
143100092
15206c4aa
hex160e220

23126560 has 24 divisors (see below), whose sum is σ = 54636876. Its totient is φ = 9250560.

The previous prime is 23126557. The next prime is 23126627. The reversal of 23126560 is 6562132.

It can be written as a sum of positive squares in 2 ways, for example, as 21790224 + 1336336 = 4668^2 + 1156^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72111 + ... + 72430.

Almost surely, 223126560 is an apocalyptic number.

23126560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23126560 is an abundant number, since it is smaller than the sum of its proper divisors (31510316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23126560 is a wasteful number, since it uses less digits than its factorization.

23126560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144556 (or 144548 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 23126560 is about 4809.0082137588. The cubic root of 23126560 is about 284.9073670428.

Adding to 23126560 its reverse (6562132), we get a palindrome (29688692).

The spelling of 23126560 in words is "twenty-three million, one hundred twenty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 144541 289082 578164 722705 1156328 1445410 2312656 2890820 4625312 5781640 11563280 23126560