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72855060 = 22357691579
BaseRepresentation
bin1000101011110…
…10111000010100
312002002102100120
410111322320110
5122122330220
611121311540
71543154265
oct425727024
9162072316
1072855060
11381410a3
12204955b0
131212b205
14996696c
1565e1a40
hex457ae14

72855060 has 48 divisors (see below), whose sum is σ = 204388800. Its totient is φ = 19390464.

The previous prime is 72855059. The next prime is 72855067. The reversal of 72855060 is 6055827.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72855067) 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, 45351 + ... + 46929.

It is an arithmetic number, because the mean of its divisors is an integer number (4258100).

Almost surely, 272855060 is an apocalyptic number.

It is an amenable number.

72855060 is an abundant number, since it is smaller than the sum of its proper divisors (131533740).

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

72855060 is a wasteful number, since it uses less digits than its factorization.

72855060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 72855060 is about 8535.5175590002. The cubic root of 72855060 is about 417.6571366383.

The spelling of 72855060 in words is "seventy-two million, eight hundred fifty-five thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 769 1538 1579 2307 3076 3158 3845 4614 4737 6316 7690 7895 9228 9474 11535 15380 15790 18948 23070 23685 31580 46140 47370 94740 1214251 2428502 3642753 4857004 6071255 7285506 12142510 14571012 18213765 24285020 36427530 72855060