Base | Representation |
---|---|
bin | 10000101010111… |
… | …10011000000000 |
3 | 100202010222020202 |
4 | 20111132120000 |
5 | 241300102133 |
6 | 21513224332 |
7 | 3315452456 |
oct | 1025363000 |
9 | 322128222 |
10 | 139847168 |
11 | 71a3827a |
12 | 3aa020a8 |
13 | 22c85906 |
14 | 148049d6 |
15 | c4262e8 |
hex | 855e600 |
139847168 has 40 divisors (see below), whose sum is σ = 295876152. Its totient is φ = 65806336.
The previous prime is 139847167. The next prime is 139847171. The reversal of 139847168 is 861748931.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (139847167) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671 + ... + 16737.
Almost surely, 2139847168 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 139847168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147938076).
139847168 is an abundant number, since it is smaller than the sum of its proper divisors (156028984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139847168 is an equidigital number, since it uses as much as digits as its factorization.
139847168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16102 (or 16086 counting only the distinct ones).
The product of its digits is 290304, while the sum is 47.
The square root of 139847168 is about 11825.6994719129. The cubic root of 139847168 is about 519.0603939456.
The spelling of 139847168 in words is "one hundred thirty-nine million, eight hundred forty-seven thousand, one hundred sixty-eight".
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