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139148600 = 2352695743
BaseRepresentation
bin10000100101100…
…11110100111000
3100200211110222212
420102303310320
5241110223400
621450234252
73306513023
oct1022636470
9320743885
10139148600
1171600448
123a725988
1322a9c966
14146a21ba
15c339335
hex84b3d38

139148600 has 24 divisors (see below), whose sum is σ = 323520960. Its totient is φ = 55659360.

The previous prime is 139148573. The next prime is 139148617. The reversal of 139148600 is 6841931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347672 + ... + 348071.

It is an arithmetic number, because the mean of its divisors is an integer number (13480040).

Almost surely, 2139148600 is an apocalyptic number.

139148600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139148600 is an abundant number, since it is smaller than the sum of its proper divisors (184372360).

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

139148600 is a wasteful number, since it uses less digits than its factorization.

139148600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695759 (or 695750 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 139148600 is about 11796.1264828756. The cubic root of 139148600 is about 518.1946764579.

The spelling of 139148600 in words is "one hundred thirty-nine million, one hundred forty-eight thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 695743 1391486 2782972 3478715 5565944 6957430 13914860 17393575 27829720 34787150 69574300 139148600