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23012125545 = 354633313481
BaseRepresentation
bin10101011011101000…
…010010101101101001
32012101202101002201010
4111123220102231221
5334112101004140
614323245414133
71443155561013
oct253350225551
965352332633
1023012125545
119839821582
12456286a349
132229746346
1411843671b3
158ea407880
hex55ba12b69

23012125545 has 16 divisors (see below), whose sum is σ = 36898935552. Its totient is φ = 12246622080.

The previous prime is 23012125537. The next prime is 23012125583. The reversal of 23012125545 is 54552121032.

It is not a de Polignac number, because 23012125545 - 23 = 23012125537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1649796 + ... + 1663685.

It is an arithmetic number, because the mean of its divisors is an integer number (2306183472).

Almost surely, 223012125545 is an apocalyptic number.

It is an amenable number.

23012125545 is a deficient number, since it is larger than the sum of its proper divisors (13886810007).

23012125545 is a wasteful number, since it uses less digits than its factorization.

23012125545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313952.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 23012125545 its reverse (54552121032), we get a palindrome (77564246577).

The spelling of 23012125545 in words is "twenty-three billion, twelve million, one hundred twenty-five thousand, five hundred forty-five".

Divisors: 1 3 5 15 463 1389 2315 6945 3313481 9940443 16567405 49702215 1534141703 4602425109 7670708515 23012125545