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72160158 = 23710716057
BaseRepresentation
bin1000100110100…
…01001110011110
312000210010010110
410103101032132
5121433111113
611054350450
71534231320
oct423211636
9160703113
1072160158
1137806aa4
12201bb426
1311c46b25
149825610
156505bc3
hex44d139e

72160158 has 32 divisors (see below), whose sum is σ = 166489344. Its totient is φ = 20423232.

The previous prime is 72160147. The next prime is 72160159. The reversal of 72160158 is 85106127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72160159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3535 + ... + 12522.

It is an arithmetic number, because the mean of its divisors is an integer number (5202792).

Almost surely, 272160158 is an apocalyptic number.

72160158 is an abundant number, since it is smaller than the sum of its proper divisors (94329186).

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

72160158 is a wasteful number, since it uses less digits than its factorization.

72160158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16176.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 72160158 is about 8494.7135325448. The cubic root of 72160158 is about 416.3250010494.

The spelling of 72160158 in words is "seventy-two million, one hundred sixty thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 7 14 21 42 107 214 321 642 749 1498 2247 4494 16057 32114 48171 96342 112399 224798 337197 674394 1718099 3436198 5154297 10308594 12026693 24053386 36080079 72160158