Search a number
-
+
72495164 = 2272589113
BaseRepresentation
bin1000101001000…
…11000000111100
312001102010200002
410110203000330
5122024321124
611105453432
71540125110
oct424430074
9161363602
1072495164
1137a15765
1220341278
1312033461
1498b1740
1565700ae
hex452303c

72495164 has 12 divisors (see below), whose sum is σ = 144990384. Its totient is φ = 31069344.

The previous prime is 72495133. The next prime is 72495167. The reversal of 72495164 is 46159427.

72495164 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72495167) 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, 1294529 + ... + 1294584.

It is an arithmetic number, because the mean of its divisors is an integer number (12082532).

Almost surely, 272495164 is an apocalyptic number.

It is an amenable number.

72495164 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.

72495164 is a wasteful number, since it uses less digits than its factorization.

72495164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589124 (or 2589122 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 72495164 is about 8514.4091985293. The cubic root of 72495164 is about 416.9682742839.

The spelling of 72495164 in words is "seventy-two million, four hundred ninety-five thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 2589113 5178226 10356452 18123791 36247582 72495164