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72818082 = 2331348483
BaseRepresentation
bin1000101011100…
…01110110100010
312002000112122000
410111301312202
5122120134312
611120424430
71542641421
oct425616642
9162015560
1072818082
1138116337
1220478116
131211742c
1499572b8
1565d5adc
hex4571da2

72818082 has 16 divisors (see below), whose sum is σ = 161818080. Its totient is φ = 24272676.

The previous prime is 72818063. The next prime is 72818093. The reversal of 72818082 is 28081827.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 674188 + ... + 674295.

It is an arithmetic number, because the mean of its divisors is an integer number (10113630).

Almost surely, 272818082 is an apocalyptic number.

72818082 is an abundant number, since it is smaller than the sum of its proper divisors (88999998).

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

72818082 is a wasteful number, since it uses less digits than its factorization.

72818082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348494 (or 1348488 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 72818082 is about 8533.3511588355. The cubic root of 72818082 is about 417.5864632618.

The spelling of 72818082 in words is "seventy-two million, eight hundred eighteen thousand, eighty-two".

Divisors: 1 2 3 6 9 18 27 54 1348483 2696966 4045449 8090898 12136347 24272694 36409041 72818082