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72394968 = 2337938183
BaseRepresentation
bin1000101000010…
…10100011011000
312001020001020010
410110022203120
5122013114333
611103401520
71536230022
oct424124330
9161201203
1072394968
1137957458
12202b32a0
1311cc9979
149887012
156550563
hex450a8d8

72394968 has 32 divisors (see below), whose sum is σ = 183283200. Its totient is φ = 23825568.

The previous prime is 72394913. The next prime is 72394969. The reversal of 72394968 is 86949327.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72394969) 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, 17196 + ... + 20987.

It is an arithmetic number, because the mean of its divisors is an integer number (5727600).

Almost surely, 272394968 is an apocalyptic number.

It is an amenable number.

72394968 is an abundant number, since it is smaller than the sum of its proper divisors (110888232).

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

72394968 is a wasteful number, since it uses less digits than its factorization.

72394968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38271 (or 38267 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 72394968 is about 8508.5232561238. The cubic root of 72394968 is about 416.7760876002.

The spelling of 72394968 in words is "seventy-two million, three hundred ninety-four thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 79 158 237 316 474 632 948 1896 38183 76366 114549 152732 229098 305464 458196 916392 3016457 6032914 9049371 12065828 18098742 24131656 36197484 72394968