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13906910349 = 327283212167
BaseRepresentation
bin11001111001110101…
…01001110010001101
31022220012022020120200
430330322221302031
5211440132112344
610215545204113
71001424534063
oct147472516215
938805266520
1013906910349
1159970a7642
122841490639
131408247847
1495cda4033
15565d96069
hex33cea9c8d

13906910349 has 12 divisors (see below), whose sum is σ = 20090612256. Its totient is φ = 9269956872.

The previous prime is 13906910327. The next prime is 13906910363. The reversal of 13906910349 is 94301960931.

It is not a de Polignac number, because 13906910349 - 216 = 13906844813 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13906910389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40537 + ... + 171630.

It is an arithmetic number, because the mean of its divisors is an integer number (1674217688).

Almost surely, 213906910349 is an apocalyptic number.

It is an amenable number.

13906910349 is a deficient number, since it is larger than the sum of its proper divisors (6183701907).

13906910349 is a wasteful number, since it uses less digits than its factorization.

13906910349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219456 (or 219453 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The spelling of 13906910349 in words is "thirteen billion, nine hundred six million, nine hundred ten thousand, three hundred forty-nine".

Divisors: 1 3 9 7283 21849 65547 212167 636501 1909503 1545212261 4635636783 13906910349