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72254308 = 2272580511
BaseRepresentation
bin1000100111010…
…00001101100100
312000221220021111
410103220031210
5121444114213
611100354404
71535102650
oct423501544
9160856244
1072254308
1137870805
1220245a04
1311c7a939
14984ba60
156523a3d
hex44e8364

72254308 has 12 divisors (see below), whose sum is σ = 144508672. Its totient is φ = 30966120.

The previous prime is 72254297. The next prime is 72254311. The reversal of 72254308 is 80345227.

72254308 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72254308.

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 3 ways as a sum of consecutive naturals, for example, 1290228 + ... + 1290283.

Almost surely, 272254308 is an apocalyptic number.

It is an amenable number.

72254308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72254308 is a wasteful number, since it uses less digits than its factorization.

72254308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580522 (or 2580520 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 72254308 is about 8500.2534079873. The cubic root of 72254308 is about 416.5059871828.

The spelling of 72254308 in words is "seventy-two million, two hundred fifty-four thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 2580511 5161022 10322044 18063577 36127154 72254308