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28383858670 = 2511325118459
BaseRepresentation
bin11010011011110011…
…110100111111101110
32201021010020102020211
4122123303310333232
5431112231434140
621012300333034
72023243550356
oct323363647756
981233212224
1028383858670
1111045a48142
12560184417a
1328a45ca35b
141533951b66
15b11cdc2ea
hex69bcf4fee

28383858670 has 16 divisors (see below), whose sum is σ = 51543079920. Its totient is φ = 11253069184.

The previous prime is 28383858661. The next prime is 28383858703. The reversal of 28383858670 is 7685838382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12558100 + ... + 12560359.

It is an arithmetic number, because the mean of its divisors is an integer number (3221442495).

Almost surely, 228383858670 is an apocalyptic number.

28383858670 is a deficient number, since it is larger than the sum of its proper divisors (23159221250).

28383858670 is a wasteful number, since it uses less digits than its factorization.

28383858670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25118579.

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 28383858670 in words is "twenty-eight billion, three hundred eighty-three million, eight hundred fifty-eight thousand, six hundred seventy".

Divisors: 1 2 5 10 113 226 565 1130 25118459 50236918 125592295 251184590 2838385867 5676771734 14191929335 28383858670