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139847168 = 291716067
BaseRepresentation
bin10000101010111…
…10011000000000
3100202010222020202
420111132120000
5241300102133
621513224332
73315452456
oct1025363000
9322128222
10139847168
1171a3827a
123aa020a8
1322c85906
14148049d6
15c4262e8
hex855e600

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".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 256 272 512 544 1088 2176 4352 8704 16067 32134 64268 128536 257072 273139 514144 546278 1028288 1092556 2056576 2185112 4113152 4370224 8226304 8740448 17480896 34961792 69923584 139847168