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30214464878 = 21323173292057
BaseRepresentation
bin11100001000111011…
…000010010101101110
32212222200211211212202
4130020323002111232
5443334400334003
621514052501502
72116512466613
oct341073022556
985880754782
1030214464878
11118a5306734
125a3291a892
132b069452b0
141668b1450a
15bbc88e088
hex708ec256e

30214464878 has 32 divisors (see below), whose sum is σ = 51224636736. Its totient is φ = 13261678848.

The previous prime is 30214464869. The next prime is 30214464893. The reversal of 30214464878 is 87846441203.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42575 + ... + 249482.

It is an arithmetic number, because the mean of its divisors is an integer number (1600769898).

Almost surely, 230214464878 is an apocalyptic number.

30214464878 is a deficient number, since it is larger than the sum of its proper divisors (21010171858).

30214464878 is a wasteful number, since it uses less digits than its factorization.

30214464878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292268.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 30214464878 in words is "thirty billion, two hundred fourteen million, four hundred sixty-four thousand, eight hundred seventy-eight".

Divisors: 1 2 13 23 26 46 173 299 346 598 2249 3979 4498 7958 51727 103454 292057 584114 3796741 6717311 7593482 13434622 50525861 87325043 101051722 174650086 656836193 1162094803 1313672386 2324189606 15107232439 30214464878