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139846168 = 237111311733
BaseRepresentation
bin10000101010111…
…10001000011000
3100202010220212201
420111132020120
5241300034133
621513215544
73315446530
oct1025361030
9322126781
10139846168
1171a37550
123aa015b4
1322c85317
14148044c0
15c425d7d
hex855e218

139846168 has 64 divisors (see below), whose sum is σ = 329598720. Its totient is φ = 54038400.

The previous prime is 139846159. The next prime is 139846169. The reversal of 139846168 is 861648931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139846169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79830 + ... + 81562.

It is an arithmetic number, because the mean of its divisors is an integer number (5149980).

Almost surely, 2139846168 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 139846168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164799360).

139846168 is an abundant number, since it is smaller than the sum of its proper divisors (189752552).

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

139846168 is a wasteful number, since it uses less digits than its factorization.

139846168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888 (or 1884 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 139846168 is about 11825.6571910402. The cubic root of 139846168 is about 519.0591567340.

The spelling of 139846168 in words is "one hundred thirty-nine million, eight hundred forty-six thousand, one hundred sixty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 131 154 262 308 524 616 917 1048 1441 1733 1834 2882 3466 3668 5764 6932 7336 10087 11528 12131 13864 19063 20174 24262 38126 40348 48524 76252 80696 97048 133441 152504 227023 266882 454046 533764 908092 1067528 1589161 1816184 2497253 3178322 4994506 6356644 9989012 12713288 17480771 19978024 34961542 69923084 139846168