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139106548 = 22731433727
BaseRepresentation
bin10000100101010…
…01100011110100
3100200202100022101
420102221203310
5241102402143
621445311444
73306246310
oct1022514364
9320670271
10139106548
1171581899
123a705584
1322a86789
1414690b40
15c32bb4d
hex84a98f4

139106548 has 48 divisors (see below), whose sum is σ = 293945344. Its totient is φ = 56337120.

The previous prime is 139106531. The next prime is 139106567. The reversal of 139106548 is 845601931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35461 + ... + 39187.

Almost surely, 2139106548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139106548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146972672).

139106548 is an abundant number, since it is smaller than the sum of its proper divisors (154838796).

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

139106548 is a wasteful number, since it uses less digits than its factorization.

139106548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812 (or 3810 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 139106548 is about 11794.3438986660. The cubic root of 139106548 is about 518.1424701163.

The spelling of 139106548 in words is "one hundred thirty-nine million, one hundred six thousand, five hundred forty-eight".

Divisors: 1 2 4 7 14 28 31 43 62 86 124 172 217 301 434 602 868 1204 1333 2666 3727 5332 7454 9331 14908 18662 26089 37324 52178 104356 115537 160261 231074 320522 462148 641044 808759 1121827 1617518 2243654 3235036 4487308 4968091 9936182 19872364 34776637 69553274 139106548