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72485684 = 22194572087
BaseRepresentation
bin1000101001000…
…00101100110100
312001101122122222
410110200230310
5122024020214
611105341512
71540055345
oct424405464
9161348588
1072485684
1137a09627
1220337898
131202c04b
1498ac0cc
15656c38e
hex4520b34

72485684 has 24 divisors (see below), whose sum is σ = 133882560. Its totient is φ = 34243776.

The previous prime is 72485681. The next prime is 72485711. The reversal of 72485684 is 48658427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72485681) 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, 33689 + ... + 35775.

It is an arithmetic number, because the mean of its divisors is an integer number (5578440).

Almost surely, 272485684 is an apocalyptic number.

It is an amenable number.

72485684 is a deficient number, since it is larger than the sum of its proper divisors (61396876).

72485684 is a wasteful number, since it uses less digits than its factorization.

72485684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567 (or 2565 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 72485684 is about 8513.8524769930. The cubic root of 72485684 is about 416.9500982138.

The spelling of 72485684 in words is "seventy-two million, four hundred eighty-five thousand, six hundred eighty-four".

Divisors: 1 2 4 19 38 76 457 914 1828 2087 4174 8348 8683 17366 34732 39653 79306 158612 953759 1907518 3815036 18121421 36242842 72485684