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139838048 = 257624277
BaseRepresentation
bin10000101010111…
…00001001100000
3100202010111201222
420111130021200
5241244304143
621513114212
73315414050
oct1025341140
9322114658
10139838048
1171a31439
123a9b8968
1322c8170c
1414801560
15c423768
hex855c260

139838048 has 24 divisors (see below), whose sum is σ = 314636112. Its totient is φ = 59930496.

The previous prime is 139838033. The next prime is 139838099. The reversal of 139838048 is 840838931.

139838048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311915 + ... + 312362.

It is an arithmetic number, because the mean of its divisors is an integer number (13109838).

Almost surely, 2139838048 is an apocalyptic number.

It is an amenable number.

139838048 is an abundant number, since it is smaller than the sum of its proper divisors (174798064).

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

139838048 is an equidigital number, since it uses as much as digits as its factorization.

139838048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624294 (or 624286 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 139838048 is about 11825.3138647564. The cubic root of 139838048 is about 519.0491103571.

The spelling of 139838048 in words is "one hundred thirty-nine million, eight hundred thirty-eight thousand, forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 624277 1248554 2497108 4369939 4994216 8739878 9988432 17479756 19976864 34959512 69919024 139838048