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13849975347 = 3139727713217
BaseRepresentation
bin11001110011000010…
…11101101000110011
31022202020011122102220
430321201131220303
5211331043202342
610210153012123
71000133563605
oct147141355063
938666148386
1013849975347
115967a4a51a
1228263b4043
1313c95019b0
149555c3175
15560d9b5ec
hex33985da33

13849975347 has 32 divisors (see below), whose sum is σ = 20166226752. Its totient is φ = 8404107264.

The previous prime is 13849975333. The next prime is 13849975367. The reversal of 13849975347 is 74357994831.

It is not a de Polignac number, because 13849975347 - 27 = 13849975219 is a prime.

It is a super-2 number, since 2×138499753472 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13849975367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041283 + ... + 1054499.

It is an arithmetic number, because the mean of its divisors is an integer number (630194586).

Almost surely, 213849975347 is an apocalyptic number.

13849975347 is a deficient number, since it is larger than the sum of its proper divisors (6316251405).

13849975347 is a wasteful number, since it uses less digits than its factorization.

13849975347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607.

The product of its digits is 22861440, while the sum is 60.

The spelling of 13849975347 in words is "thirteen billion, eight hundred forty-nine million, nine hundred seventy-five thousand, three hundred forty-seven".

Divisors: 1 3 13 39 97 277 291 831 1261 3601 3783 10803 13217 26869 39651 80607 171821 349297 515463 1047891 1282049 3661109 3846147 10983327 16666637 47594417 49999911 142783251 355127573 1065382719 4616658449 13849975347