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72083030 = 2537194819
BaseRepresentation
bin1000100101111…
…10011001010110
312000122012022212
410102332121112
5121423124110
611052553422
71533460415
oct422763126
9160565285
1072083030
1137764058
1220182872
1311c1a9a6
14980547c
1564dce05
hex44be656

72083030 has 16 divisors (see below), whose sum is σ = 133256880. Its totient is φ = 28053792.

The previous prime is 72082999. The next prime is 72083057. The reversal of 72083030 is 3038027.

It is a junction number, because it is equal to n+sod(n) for n = 72082987 and 72083005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97040 + ... + 97779.

It is an arithmetic number, because the mean of its divisors is an integer number (8328555).

Almost surely, 272083030 is an apocalyptic number.

72083030 is a deficient number, since it is larger than the sum of its proper divisors (61173850).

72083030 is a wasteful number, since it uses less digits than its factorization.

72083030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194863.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 72083030 is about 8490.1725541946. The cubic root of 72083030 is about 416.1766192522.

The spelling of 72083030 in words is "seventy-two million, eighty-three thousand, thirty".

Divisors: 1 2 5 10 37 74 185 370 194819 389638 974095 1948190 7208303 14416606 36041515 72083030