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72855084 = 223311511297
BaseRepresentation
bin1000101011110…
…10111000101100
312002002102101110
410111322320230
5122122330314
611121312020
71543154331
oct425727054
9162072343
1072855084
1138141115
1220495610
131212b223
149966988
1565e1a59
hex457ae2c

72855084 has 48 divisors (see below), whose sum is σ = 176777216. Its totient is φ = 23328000.

The previous prime is 72855067. The next prime is 72855089. The reversal of 72855084 is 48055827.

It is not an unprimeable number, because it can be changed into a prime (72855089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55524 + ... + 56820.

Almost surely, 272855084 is an apocalyptic number.

It is an amenable number.

72855084 is an abundant number, since it is smaller than the sum of its proper divisors (103922132).

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

72855084 is a wasteful number, since it uses less digits than its factorization.

72855084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 72855084 is about 8535.5189648902. The cubic root of 72855084 is about 417.6571825000.

The spelling of 72855084 in words is "seventy-two million, eight hundred fifty-five thousand, eighty-four".

Divisors: 1 2 3 4 6 12 31 62 93 124 151 186 302 372 453 604 906 1297 1812 2594 3891 4681 5188 7782 9362 14043 15564 18724 28086 40207 56172 80414 120621 160828 195847 241242 391694 482484 587541 783388 1175082 2350164 6071257 12142514 18213771 24285028 36427542 72855084