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30823428168 = 23321332931013
BaseRepresentation
bin11100101101001110…
…000011000001001000
32221120010201101110200
4130231032003001020
51001111244200133
622054325012200
72140555550031
oct345516030110
987503641420
1030823428168
1112088026885
125b82854060
132ba2b5b8c0
1416c5951a88
15c0607c913
hex72d383048

30823428168 has 48 divisors (see below), whose sum is σ = 89901668220. Its totient is φ = 9484131456.

The previous prime is 30823428149. The next prime is 30823428191. The reversal of 30823428168 is 86182432803.

30823428168 is a `hidden beast` number, since 308 + 2 + 3 + 4 + 281 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28351150884 + 2472277284 = 168378^2 + 49722^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16464571 + ... + 16466442.

Almost surely, 230823428168 is an apocalyptic number.

It is an amenable number.

30823428168 is an abundant number, since it is smaller than the sum of its proper divisors (59078240052).

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

30823428168 is a wasteful number, since it uses less digits than its factorization.

30823428168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32931038 (or 32931031 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 30823428168 in words is "thirty billion, eight hundred twenty-three million, four hundred twenty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 32931013 65862026 98793039 131724052 197586078 263448104 296379117 395172156 428103169 592758234 790344312 856206338 1185516468 1284309507 1712412676 2371032936 2568619014 3424825352 3852928521 5137238028 7705857042 10274476056 15411714084 30823428168