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13900171138 = 2726122310427
BaseRepresentation
bin11001111001000001…
…11100011110000010
31022212201121212010021
430330200330132002
5211431420434023
610215144524054
71001313335200
oct147440743602
938781555107
1013900171138
115993314347
12283b18062a
131406a28249
1495c12c070
155654b435d
hex33c83c782

13900171138 has 48 divisors (see below), whose sum is σ = 24764914944. Its totient is φ = 5832721440.

The previous prime is 13900171097. The next prime is 13900171169. The reversal of 13900171138 is 83117100931.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1327881 + ... + 1338307.

It is an arithmetic number, because the mean of its divisors is an integer number (515935728).

Almost surely, 213900171138 is an apocalyptic number.

13900171138 is a deficient number, since it is larger than the sum of its proper divisors (10864743806).

13900171138 is a wasteful number, since it uses less digits than its factorization.

13900171138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727 (or 10720 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 13900171138 in words is "thirteen billion, nine hundred million, one hundred seventy-one thousand, one hundred thirty-eight".

Divisors: 1 2 7 14 49 61 98 122 223 427 446 854 1561 2989 3122 5978 10427 10927 13603 20854 21854 27206 72989 95221 145978 190442 510923 636047 666547 1021846 1272094 1333094 2325221 4452329 4650442 8904658 16276547 31166303 32553094 62332606 113935829 141838481 227871658 283676962 992869367 1985738734 6950085569 13900171138