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4578680868 = 223381556739
BaseRepresentation
bin1000100001110100…
…10010000000100100
3102211002121002100220
410100322102000210
533334120241433
62034201004340
7221315100546
oct42072220044
912732532326
104578680868
111a3a600783
12a794836b0
1357c794628
1431614b696
151bbe812b3
hex110e92024

4578680868 has 12 divisors (see below), whose sum is σ = 10683588720. Its totient is φ = 1526226952.

The previous prime is 4578680867. The next prime is 4578680881. The reversal of 4578680868 is 8680868754.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4578680867) 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, 190778358 + ... + 190778381.

It is an arithmetic number, because the mean of its divisors is an integer number (890299060).

Almost surely, 24578680868 is an apocalyptic number.

It is an amenable number.

4578680868 is an abundant number, since it is smaller than the sum of its proper divisors (6104907852).

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

4578680868 is a wasteful number, since it uses less digits than its factorization.

4578680868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381556746 (or 381556744 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The square root of 4578680868 is about 67665.9505807759. The cubic root of 4578680868 is about 1660.5302496312.

The spelling of 4578680868 in words is "four billion, five hundred seventy-eight million, six hundred eighty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 381556739 763113478 1144670217 1526226956 2289340434 4578680868