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13927378392 = 2332193435811
BaseRepresentation
bin11001111100010001…
…01110110111011000
31022221121211010110100
430332020232313120
5212010402102032
610222000015400
71002063522504
oct147610566730
938847733410
1013927378392
1159a7707584
122848301560
13140c563005
149619b1304
15567a8a97c
hex33e22edd8

13927378392 has 24 divisors (see below), whose sum is σ = 37719983340. Its totient is φ = 4642459440.

The previous prime is 13927378369. The next prime is 13927378411. The reversal of 13927378392 is 29387372931.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 96717834 + ... + 96717977.

Almost surely, 213927378392 is an apocalyptic number.

13927378392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13927378392 is an abundant number, since it is smaller than the sum of its proper divisors (23792604948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13927378392 is a wasteful number, since it uses less digits than its factorization.

13927378392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193435823 (or 193435816 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The spelling of 13927378392 in words is "thirteen billion, nine hundred twenty-seven million, three hundred seventy-eight thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 193435811 386871622 580307433 773743244 1160614866 1547486488 1740922299 2321229732 3481844598 4642459464 6963689196 13927378392