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23031110212 = 2211523434323
BaseRepresentation
bin10101011100110000…
…101101101001000100
32012110002002121202221
4111130300231221010
5334131431011322
614325204342124
71443506130625
oct253460555104
965402077687
1023031110212
119849508a90
1245690a4944
132230662586
141186aa9a4c
158ebe079c7
hex55cc2da44

23031110212 has 12 divisors (see below), whose sum is σ = 43968483216. Its totient is φ = 10468686440.

The previous prime is 23031110173. The next prime is 23031110227. The reversal of 23031110212 is 21201113032.

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, 261717118 + ... + 261717205.

It is an arithmetic number, because the mean of its divisors is an integer number (3664040268).

Almost surely, 223031110212 is an apocalyptic number.

23031110212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23031110212 is a deficient number, since it is larger than the sum of its proper divisors (20937373004).

23031110212 is a wasteful number, since it uses less digits than its factorization.

23031110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523434338 (or 523434336 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23031110212 its reverse (21201113032), we get a palindrome (44232223244).

The spelling of 23031110212 in words is "twenty-three billion, thirty-one million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 523434323 1046868646 2093737292 5757777553 11515555106 23031110212