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83630472 = 2336752009
BaseRepresentation
bin1001111110000…
…01100110001000
312211100212102220
410333001212020
5132402133342
612144254040
72033563422
oct477014610
9184325386
1083630472
11432308a2
1224011320
13144319b3
14b16d812
15751e5ec
hex4fc1988

83630472 has 32 divisors (see below), whose sum is σ = 212200800. Its totient is φ = 27460224.

The previous prime is 83630453. The next prime is 83630473. The reversal of 83630472 is 27403638.

It is not an unprimeable number, because it can be changed into a prime (83630473) 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, 24397 + ... + 27612.

It is an arithmetic number, because the mean of its divisors is an integer number (6631275).

Almost surely, 283630472 is an apocalyptic number.

It is an amenable number.

83630472 is an abundant number, since it is smaller than the sum of its proper divisors (128570328).

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

83630472 is a wasteful number, since it uses less digits than its factorization.

83630472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52085 (or 52081 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 83630472 is about 9144.9697648489. The cubic root of 83630472 is about 437.3087656195.

The spelling of 83630472 in words is "eighty-three million, six hundred thirty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 67 134 201 268 402 536 804 1608 52009 104018 156027 208036 312054 416072 624108 1248216 3484603 6969206 10453809 13938412 20907618 27876824 41815236 83630472