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72485802 = 2324026989
BaseRepresentation
bin1000101001000…
…00101110101010
312001101122211100
410110200232222
5122024021202
611105342230
71540055604
oct424405652
9161348740
1072485802
1137a09724
1220337976
131202c10c
1498ac174
15656c41c
hex4520baa

72485802 has 12 divisors (see below), whose sum is σ = 157052610. Its totient is φ = 24161928.

The previous prime is 72485767. The next prime is 72485813. The reversal of 72485802 is 20858427.

It is a happy number.

72485802 is a `hidden beast` number, since 72 + 4 + 8 + 580 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68409441 + 4076361 = 8271^2 + 2019^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2013477 + ... + 2013512.

Almost surely, 272485802 is an apocalyptic number.

72485802 is an abundant number, since it is smaller than the sum of its proper divisors (84566808).

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

72485802 is a wasteful number, since it uses less digits than its factorization.

72485802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026997 (or 4026994 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 72485802 is about 8513.8594068730. The cubic root of 72485802 is about 416.9503244658.

The spelling of 72485802 in words is "seventy-two million, four hundred eighty-five thousand, eight hundred two".

Divisors: 1 2 3 6 9 18 4026989 8053978 12080967 24161934 36242901 72485802