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72364828 = 22163110989
BaseRepresentation
bin1000101000000…
…11001100011100
312001011111212211
410110003030130
5122011133303
611103010204
71536043114
oct424031434
9161144784
1072364828
1137936848
1220299964
1311cb9033
14987a044
15654666d
hex450331c

72364828 has 12 divisors (see below), whose sum is σ = 127416520. Its totient is φ = 35960112.

The previous prime is 72364823. The next prime is 72364837. The reversal of 72364828 is 82846327.

It is a hoax number, since the sum of its digits (40) 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 (72364823) 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, 54843 + ... + 56146.

Almost surely, 272364828 is an apocalyptic number.

It is an amenable number.

72364828 is a deficient number, since it is larger than the sum of its proper divisors (55051692).

72364828 is a wasteful number, since it uses less digits than its factorization.

72364828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111156 (or 111154 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 72364828 is about 8506.7519065740. The cubic root of 72364828 is about 416.7182411537.

The spelling of 72364828 in words is "seventy-two million, three hundred sixty-four thousand, eight hundred twenty-eight".

Divisors: 1 2 4 163 326 652 110989 221978 443956 18091207 36182414 72364828