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72964860 = 22351976173
BaseRepresentation
bin1000101100101…
…01101011111100
312002021222222020
410112111223330
5122134333420
611123520140
71544122353
oct426255374
9162258866
1072964860
1138206641
1220529050
1312169197
14999499a
156614340
hex4595afc

72964860 has 48 divisors (see below), whose sum is σ = 205371936. Its totient is φ = 19355392.

The previous prime is 72964849. The next prime is 72964889. The reversal of 72964860 is 6846927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8734 + ... + 14906.

It is an arithmetic number, because the mean of its divisors is an integer number (4278582).

Almost surely, 272964860 is an apocalyptic number.

It is an amenable number.

72964860 is an abundant number, since it is smaller than the sum of its proper divisors (132407076).

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

72964860 is a wasteful number, since it uses less digits than its factorization.

72964860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6382 (or 6380 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 72964860 is about 8541.9470848279. The cubic root of 72964860 is about 417.8668486104.

The spelling of 72964860 in words is "seventy-two million, nine hundred sixty-four thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 197 394 591 788 985 1182 1970 2364 2955 3940 5910 6173 11820 12346 18519 24692 30865 37038 61730 74076 92595 123460 185190 370380 1216081 2432162 3648243 4864324 6080405 7296486 12160810 14592972 18241215 24321620 36482430 72964860