Search a number
-
+
72492308 = 2272589011
BaseRepresentation
bin1000101001000…
…10010100010100
312001101222202022
410110202110110
5122024223213
611105432312
71540113560
oct424422424
9161358668
1072492308
1137a135a9
122033b698
1312032075
1498b06a0
15656e308
hex4522514

72492308 has 12 divisors (see below), whose sum is σ = 144984672. Its totient is φ = 31068120.

The previous prime is 72492293. The next prime is 72492311. The reversal of 72492308 is 80329427.

72492308 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294478 + ... + 1294533.

It is an arithmetic number, because the mean of its divisors is an integer number (12082056).

Almost surely, 272492308 is an apocalyptic number.

It is an amenable number.

72492308 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.

72492308 is a wasteful number, since it uses less digits than its factorization.

72492308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589022 (or 2589020 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 72492308 is about 8514.2414811890. The cubic root of 72492308 is about 416.9627986220.

The spelling of 72492308 in words is "seventy-two million, four hundred ninety-two thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 2589011 5178022 10356044 18123077 36246154 72492308