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13511970082 = 21310118012857
BaseRepresentation
bin11001001010110000…
…00100110100100010
31021212200011012101101
430211120010310202
5210133031020312
610112440225014
7655560564532
oct144530046442
937780135341
1013511970082
115804178126
12275116b16a
131374488290
149227594c2
15541381a57
hex325604d22

13511970082 has 32 divisors (see below), whose sum is σ = 22063096944. Its totient is φ = 6168960000.

The previous prime is 13511970071. The next prime is 13511970119. The reversal of 13511970082 is 28007911531.

It is a Cunningham number, because it is equal to 1162412+1.

It can be written as a sum of positive squares in 8 ways, for example, as 6459497641 + 7052472441 = 80371^2 + 83979^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4727998 + ... + 4730854.

Almost surely, 213511970082 is an apocalyptic number.

13511970082 is a deficient number, since it is larger than the sum of its proper divisors (8551126862).

13511970082 is a wasteful number, since it uses less digits than its factorization.

13511970082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 13511970082 in words is "thirteen billion, five hundred eleven million, nine hundred seventy thousand, eighty-two".

Divisors: 1 2 13 26 101 202 1313 1801 2626 2857 3602 5714 23413 37141 46826 74282 181901 288557 363802 577114 2364713 3751241 4729426 5145457 7502482 10290914 66890941 133781882 519691157 1039382314 6755985041 13511970082