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13719140172 = 22322931300639
BaseRepresentation
bin11001100011011100…
…10111011101001100
31022102002222112022200
430301232113131030
5211044044441142
610145200441500
7663654524133
oct146156273514
938362875280
1013719140172
115900108081
1227aa619290
1313a838302a
1494208691a
1555465564c
hex331b9774c

13719140172 has 36 divisors (see below), whose sum is σ = 34797322560. Its totient is φ = 4557435552.

The previous prime is 13719140147. The next prime is 13719140173. The reversal of 13719140172 is 27104191731.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13719140173) 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, 639772 + ... + 660867.

Almost surely, 213719140172 is an apocalyptic number.

13719140172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13719140172 is an abundant number, since it is smaller than the sum of its proper divisors (21078182388).

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

13719140172 is a wasteful number, since it uses less digits than its factorization.

13719140172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300942 (or 1300937 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The spelling of 13719140172 in words is "thirteen billion, seven hundred nineteen million, one hundred forty thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 293 586 879 1172 1758 2637 3516 5274 10548 1300639 2601278 3901917 5202556 7803834 11705751 15607668 23411502 46823004 381087227 762174454 1143261681 1524348908 2286523362 3429785043 4573046724 6859570086 13719140172