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13689656375 = 53109517251
BaseRepresentation
bin11001011111111011…
…11001010000110111
31022100001111121011012
430233331321100313
5211014023001000
610142224502435
7663146105423
oct145775712067
938301447135
1013689656375
1158954aa4aa
1227a077aa1b
1313a222bcb5
1493c1adb83
15551c7e735
hex32ff79437

13689656375 has 8 divisors (see below), whose sum is σ = 17084691312. Its totient is φ = 10951725000.

The previous prime is 13689656371. The next prime is 13689656399. The reversal of 13689656375 is 57365698631.

It is not a de Polignac number, because 13689656375 - 22 = 13689656371 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 (13689656371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54758501 + ... + 54758750.

It is an arithmetic number, because the mean of its divisors is an integer number (2135586414).

Almost surely, 213689656375 is an apocalyptic number.

13689656375 is a deficient number, since it is larger than the sum of its proper divisors (3395034937).

13689656375 is an equidigital number, since it uses as much as digits as its factorization.

13689656375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109517266 (or 109517256 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 59.

The spelling of 13689656375 in words is "thirteen billion, six hundred eighty-nine million, six hundred fifty-six thousand, three hundred seventy-five".

Divisors: 1 5 25 125 109517251 547586255 2737931275 13689656375