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23028901525 = 52741278283
BaseRepresentation
bin10101011100101000…
…010010011010010101
32012102220221102000201
4111130220102122111
5334130344322100
614325045140501
71443451301410
oct253450223225
965386842021
1023028901525
11984823a623
1245683ba731
13223006b166
141186692b77
158ebb1d36a
hex55ca12695

23028901525 has 36 divisors (see below), whose sum is σ = 33451066336. Its totient is φ = 15405897600.

The previous prime is 23028901523. The next prime is 23028901543. The reversal of 23028901525 is 52510982032.

It is not a de Polignac number, because 23028901525 - 21 = 23028901523 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 (23028901523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 255034 + ... + 333316.

Almost surely, 223028901525 is an apocalyptic number.

23028901525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23028901525 is a deficient number, since it is larger than the sum of its proper divisors (10422164811).

23028901525 is an equidigital number, since it uses as much as digits as its factorization.

23028901525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78382 (or 78336 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 23028901525 in words is "twenty-three billion, twenty-eight million, nine hundred one thousand, five hundred twenty-five".

Divisors: 1 5 7 25 35 41 175 205 287 1025 1435 1681 7175 8405 11767 42025 58835 78283 294175 391415 547981 1957075 2739905 3209603 13699525 16048015 22467221 80240075 112336105 131593723 561680525 657968615 921156061 3289843075 4605780305 23028901525