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72855086 = 2167331659
BaseRepresentation
bin1000101011110…
…10111000101110
312002002102101112
410111322320232
5122122330321
611121312022
71543154333
oct425727056
9162072345
1072855086
1138141117
1220495612
131212b225
14996698a
1565e1a5b
hex457ae2e

72855086 has 16 divisors (see below), whose sum is σ = 110436480. Its totient is φ = 36045240.

The previous prime is 72855067. The next prime is 72855089. The reversal of 72855086 is 68055827.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 110225 + ... + 110883.

It is an arithmetic number, because the mean of its divisors is an integer number (6902280).

Almost surely, 272855086 is an apocalyptic number.

72855086 is a deficient number, since it is larger than the sum of its proper divisors (37581394).

72855086 is a wasteful number, since it uses less digits than its factorization.

72855086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 72855086 is about 8535.5190820477. The cubic root of 72855086 is about 417.6571863218.

The spelling of 72855086 in words is "seventy-two million, eight hundred fifty-five thousand, eighty-six".

Divisors: 1 2 167 331 334 659 662 1318 55277 110053 110554 218129 220106 436258 36427543 72855086