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13907685974 = 2721310916551
BaseRepresentation
bin11001111001111011…
…00111001001010110
31022220020202122112112
430330331213021112
5211440331422344
610220013551022
71001434244300
oct147475471126
938806678475
1013907685974
115997587356
1228417a5472
1314084598b0
1495d126970
15565e9ac9e
hex33cf67256

13907685974 has 24 divisors (see below), whose sum is σ = 26134225488. Its totient is φ = 5501941200.

The previous prime is 13907685943. The next prime is 13907685983. The reversal of 13907685974 is 47958670931.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5457002 + ... + 5459549.

It is an arithmetic number, because the mean of its divisors is an integer number (1088926062).

Almost surely, 213907685974 is an apocalyptic number.

13907685974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13907685974 is a deficient number, since it is larger than the sum of its proper divisors (12226539514).

13907685974 is a wasteful number, since it uses less digits than its factorization.

13907685974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10916580 (or 10916573 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 13907685974 in words is "thirteen billion, nine hundred seven million, six hundred eighty-five thousand, nine hundred seventy-four".

Divisors: 1 2 7 13 14 26 49 91 98 182 637 1274 10916551 21833102 76415857 141915163 152831714 283830326 534910999 993406141 1069821998 1986812282 6953842987 13907685974