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23136221260 = 2251156811063
BaseRepresentation
bin10101100011000001…
…101011100001001100
32012201101212211000201
4111203001223201030
5334340333040020
614343441303244
71446223431055
oct254301534114
965641784021
1023136221260
1198a2880519
124598334b24
132249375569
141196a2b72c
1590626ba0a
hex56306b84c

23136221260 has 12 divisors (see below), whose sum is σ = 48586064688. Its totient is φ = 9254488496.

The previous prime is 23136221231. The next prime is 23136221261. The reversal of 23136221260 is 6212263132.

It is not an unprimeable number, because it can be changed into a prime (23136221261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578405512 + ... + 578405551.

It is an arithmetic number, because the mean of its divisors is an integer number (4048838724).

Almost surely, 223136221260 is an apocalyptic number.

23136221260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23136221260 is an abundant number, since it is smaller than the sum of its proper divisors (25449843428).

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

23136221260 is a wasteful number, since it uses less digits than its factorization.

23136221260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156811072 (or 1156811070 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 23136221260 its reverse (6212263132), we get a palindrome (29348484392).

The spelling of 23136221260 in words is "twenty-three billion, one hundred thirty-six million, two hundred twenty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 1156811063 2313622126 4627244252 5784055315 11568110630 23136221260