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8979985084 = 227320713753
BaseRepresentation
bin10000101110011111…
…11011001010111100
3212011211102111201011
420113033323022330
5121342334010314
64043024125004
7435350420350
oct102717731274
925154374634
108979985084
113898a70784
1218a7466764
13b01593155
146128c5460
153785764c4
hex2173fb2bc

8979985084 has 12 divisors (see below), whose sum is σ = 17959970224. Its totient is φ = 3848565024.

The previous prime is 8979985057. The next prime is 8979985087. The reversal of 8979985084 is 4805899798.

8979985084 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8979985087) 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, 160356849 + ... + 160356904.

Almost surely, 28979985084 is an apocalyptic number.

It is an amenable number.

8979985084 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8979985084 is a wasteful number, since it uses less digits than its factorization.

8979985084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320713764 (or 320713762 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 67.

The square root of 8979985084 is about 94762.7832221068. The cubic root of 8979985084 is about 2078.5407266365.

The spelling of 8979985084 in words is "eight billion, nine hundred seventy-nine million, nine hundred eighty-five thousand, eighty-four".

Divisors: 1 2 4 7 14 28 320713753 641427506 1282855012 2244996271 4489992542 8979985084