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72948086520 = 23351733513877
BaseRepresentation
bin100001111110000001…
…0110111011011111000
320222021212200202022020
41003330002313123320
52143344202232040
653302322354440
75161502335041
oct1037402673370
9228255622266
1072948086520
1128a34325111
121217a1bba20
136b5715384a
1437603878c8
151d6e34ccd0
hex10fc0b76f8

72948086520 has 64 divisors (see below), whose sum is σ = 220109317920. Its totient is φ = 19340373504.

The previous prime is 72948086489. The next prime is 72948086557. The reversal of 72948086520 is 2568084927.

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, 1736179 + ... + 1777698.

Almost surely, 272948086520 is an apocalyptic number.

It is an amenable number.

72948086520 is an abundant number, since it is smaller than the sum of its proper divisors (147161231400).

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

72948086520 is a wasteful number, since it uses less digits than its factorization.

72948086520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514064 (or 3514060 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 72948086520 in words is "seventy-two billion, nine hundred forty-eight million, eighty-six thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 173 346 519 692 865 1038 1384 1730 2076 2595 3460 4152 5190 6920 10380 20760 3513877 7027754 10541631 14055508 17569385 21083262 28111016 35138770 42166524 52708155 70277540 84333048 105416310 140555080 210832620 421665240 607900721 1215801442 1823702163 2431602884 3039503605 3647404326 4863205768 6079007210 7294808652 9118510815 12158014420 14589617304 18237021630 24316028840 36474043260 72948086520