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13689538274 = 219748177213
BaseRepresentation
bin11001011111111010…
…11100011011100010
31022100001021121011002
430233331130123202
5211014010211044
610142222152002
7663145104206
oct145775343342
938301247132
1013689538274
1158954297a5
1227a0722602
1313a21ba309
1493c17cb06
15551c5974e
hex32ff5c6e2

13689538274 has 16 divisors (see below), whose sum is σ = 20645688888. Its totient is φ = 6807666432.

The previous prime is 13689538273. The next prime is 13689538301. The reversal of 13689538274 is 47283598631.

It can be written as a sum of positive squares in 4 ways, for example, as 13454376049 + 235162225 = 115993^2 + 15335^2 .

It is not an unprimeable number, because it can be changed into a prime (13689538273) 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, 1894292 + ... + 1901504.

Almost surely, 213689538274 is an apocalyptic number.

13689538274 is a deficient number, since it is larger than the sum of its proper divisors (6956150614).

13689538274 is a wasteful number, since it uses less digits than its factorization.

13689538274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12229.

The product of its digits is 8709120, while the sum is 56.

The spelling of 13689538274 in words is "thirteen billion, six hundred eighty-nine million, five hundred thirty-eight thousand, two hundred seventy-four".

Divisors: 1 2 197 394 4817 7213 9634 14426 948949 1420961 1897898 2841922 34745021 69490042 6844769137 13689538274