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72485736 = 2333020239
BaseRepresentation
bin1000101001000…
…00101101101000
312001101122201220
410110200231220
5122024020421
611105342040
71540055451
oct424405550
9161348656
1072485736
1137a09674
1220337920
131202c08b
1498ac128
15656c3c6
hex4520b68

72485736 has 16 divisors (see below), whose sum is σ = 181214400. Its totient is φ = 24161904.

The previous prime is 72485731. The next prime is 72485747. The reversal of 72485736 is 63758427.

It is not an unprimeable number, because it can be changed into a prime (72485731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1510096 + ... + 1510143.

It is an arithmetic number, because the mean of its divisors is an integer number (11325900).

Almost surely, 272485736 is an apocalyptic number.

It is an amenable number.

72485736 is an abundant number, since it is smaller than the sum of its proper divisors (108728664).

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

72485736 is a wasteful number, since it uses less digits than its factorization.

72485736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020248 (or 3020244 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 72485736 is about 8513.8555308391. The cubic root of 72485736 is about 416.9501979181.

The spelling of 72485736 in words is "seventy-two million, four hundred eighty-five thousand, seven hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 3020239 6040478 9060717 12080956 18121434 24161912 36242868 72485736