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30118944 = 253313739
BaseRepresentation
bin111001011100…
…1010000100000
32002200012102110
41302321100200
530202301234
62553315320
7514002222
oct162712040
962605373
1030118944
1116001899
12a105b40
13631717b
144000412
15299e1e9
hex1cb9420

30118944 has 24 divisors (see below), whose sum is σ = 79062480. Its totient is φ = 10039616.

The previous prime is 30118931. The next prime is 30118961. The reversal of 30118944 is 44981103.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156774 + ... + 156965.

It is an arithmetic number, because the mean of its divisors is an integer number (3294270).

Almost surely, 230118944 is an apocalyptic number.

It is an amenable number.

30118944 is an abundant number, since it is smaller than the sum of its proper divisors (48943536).

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

30118944 is a wasteful number, since it uses less digits than its factorization.

30118944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313752 (or 313744 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 30118944 is about 5488.0728858134. The cubic root of 30118944 is about 311.1333609182.

The spelling of 30118944 in words is "thirty million, one hundred eighteen thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 313739 627478 941217 1254956 1882434 2509912 3764868 5019824 7529736 10039648 15059472 30118944