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72368142 = 23711156641
BaseRepresentation
bin1000101000001…
…00000000001110
312001011200102120
410110010000032
5122011240032
611103033410
71536055560
oct424040016
9161150376
1072368142
1137939290
122029b866
1311cba6b2
14987b330
15654762c
hex450400e

72368142 has 32 divisors (see below), whose sum is σ = 180451584. Its totient is φ = 18796800.

The previous prime is 72368129. The next prime is 72368221. The reversal of 72368142 is 24186327.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77859 + ... + 78782.

It is an arithmetic number, because the mean of its divisors is an integer number (5639112).

Almost surely, 272368142 is an apocalyptic number.

72368142 is an abundant number, since it is smaller than the sum of its proper divisors (108083442).

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

72368142 is a wasteful number, since it uses less digits than its factorization.

72368142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156664.

The product of its digits is 16128, while the sum is 33.

The square root of 72368142 is about 8506.9466907934. The cubic root of 72368142 is about 416.7246023617.

The spelling of 72368142 in words is "seventy-two million, three hundred sixty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 156641 313282 469923 939846 1096487 1723051 2192974 3289461 3446102 5169153 6578922 10338306 12061357 24122714 36184071 72368142