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13689538528 = 25427798079
BaseRepresentation
bin11001011111111010…
…11100011111100000
31022100001021121111111
430233331130133200
5211014010213103
610142222153104
7663145105021
oct145775343740
938301247444
1013689538528
115895429a06
1227a0722794
1313a21ba473
1493c17cc48
15551c5986d
hex32ff5c7e0

13689538528 has 12 divisors (see below), whose sum is σ = 26951279040. Its totient is φ = 6844769248.

The previous prime is 13689538493. The next prime is 13689538547. The reversal of 13689538528 is 82583598631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213899008 + ... + 213899071.

It is an arithmetic number, because the mean of its divisors is an integer number (2245939920).

Almost surely, 213689538528 is an apocalyptic number.

It is an amenable number.

13689538528 is a deficient number, since it is larger than the sum of its proper divisors (13261740512).

13689538528 is an equidigital number, since it uses as much as digits as its factorization.

13689538528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427798089 (or 427798081 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 58.

The spelling of 13689538528 in words is "thirteen billion, six hundred eighty-nine million, five hundred thirty-eight thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32 427798079 855596158 1711192316 3422384632 6844769264 13689538528