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13923591125 = 53731525873
BaseRepresentation
bin11001111011110100…
…10010001111010101
31022221100200201022012
430331322102033111
5212003414404000
610221342514005
71002016400063
oct147572221725
938840621265
1013923591125
1159a5560104
122846b95905
13140b838222
149612a7033
1556758d735
hex33de923d5

13923591125 has 16 divisors (see below), whose sum is σ = 17614689456. Its totient is φ = 10986278400.

The previous prime is 13923591091. The next prime is 13923591127. The reversal of 13923591125 is 52119532931.

It can be written as a sum of positive squares in 8 ways, for example, as 5740941361 + 8182649764 = 75769^2 + 90458^2 .

It is not a de Polignac number, because 13923591125 - 226 = 13856482261 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 (13923591127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753812 + ... + 772061.

It is an arithmetic number, because the mean of its divisors is an integer number (1100918091).

Almost surely, 213923591125 is an apocalyptic number.

It is an amenable number.

13923591125 is a deficient number, since it is larger than the sum of its proper divisors (3691098331).

13923591125 is an equidigital number, since it uses as much as digits as its factorization.

13923591125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525961 (or 1525951 counting only the distinct ones).

The product of its digits is 72900, while the sum is 41.

The spelling of 13923591125 in words is "thirteen billion, nine hundred twenty-three million, five hundred ninety-one thousand, one hundred twenty-five".

Divisors: 1 5 25 73 125 365 1825 9125 1525873 7629365 38146825 111388729 190734125 556943645 2784718225 13923591125