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139413792 = 25371961179
BaseRepresentation
bin10000100111101…
…00100100100000
3100201022221202210
420103310210200
5241142220132
621500042120
73311666130
oct1023644440
9321287683
10139413792
1171771711
123a833340
1322b6358b
1414730ac0
15c38cbcc
hex84f4920

139413792 has 192 divisors, whose sum is σ = 449971200. Its totient is φ = 36910080.

The previous prime is 139413779. The next prime is 139413809. The reversal of 139413792 is 297314931.

It is a self number, because there is not a number n which added to its sum of digits gives 139413792.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778759 + ... + 778937.

It is an arithmetic number, because the mean of its divisors is an integer number (2343600).

Almost surely, 2139413792 is an apocalyptic number.

139413792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139413792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224985600).

139413792 is an abundant number, since it is smaller than the sum of its proper divisors (310557408).

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

139413792 is a wasteful number, since it uses less digits than its factorization.

139413792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 271 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 139413792 is about 11807.3617713696. The cubic root of 139413792 is about 518.5236625804.

The spelling of 139413792 in words is "one hundred thirty-nine million, four hundred thirteen thousand, seven hundred ninety-two".