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23122325420 = 2251156116271
BaseRepresentation
bin10101100010001100…
…101010111110101100
32012200102201211111222
4111202030222332230
5334323303403140
614342223402512
71445664344315
oct254214527654
965612654458
1023122325420
119895a4a357
124593753438
13224651b67c
141194c5160c
15904e245b5
hex56232afac

23122325420 has 12 divisors (see below), whose sum is σ = 48556883424. Its totient is φ = 9248930160.

The previous prime is 23122325411. The next prime is 23122325453. The reversal of 23122325420 is 2452322132.

It is a self number, because there is not a number n which added to its sum of digits gives 23122325420.

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, 578058116 + ... + 578058155.

It is an arithmetic number, because the mean of its divisors is an integer number (4046406952).

Almost surely, 223122325420 is an apocalyptic number.

23122325420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23122325420 is an abundant number, since it is smaller than the sum of its proper divisors (25434558004).

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

23122325420 is a wasteful number, since it uses less digits than its factorization.

23122325420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156116280 (or 1156116278 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 23122325420 its reverse (2452322132), we get a palindrome (25574647552).

The spelling of 23122325420 in words is "twenty-three billion, one hundred twenty-two million, three hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1156116271 2312232542 4624465084 5780581355 11561162710 23122325420