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28458782014 = 2132986336653
BaseRepresentation
bin11010100000010001…
…101000110100111110
32201110100012220202111
4122200101220310332
5431240422011024
621023534244234
72025143440645
oct324021506476
981410186674
1028458782014
1111084271163
12562295667a
1328b6ca0ab0
14153d89635c
15b1868ba94
hex6a0468d3e

28458782014 has 16 divisors (see below), whose sum is σ = 45974672352. Its totient is φ = 13134024288.

The previous prime is 28458781991. The next prime is 28458782039. The reversal of 28458782014 is 41028785482.

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, 758112 + ... + 794764.

It is an arithmetic number, because the mean of its divisors is an integer number (2873417022).

Almost surely, 228458782014 is an apocalyptic number.

28458782014 is a deficient number, since it is larger than the sum of its proper divisors (17515890338).

28458782014 is a wasteful number, since it uses less digits than its factorization.

28458782014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66531.

The product of its (nonzero) digits is 1146880, while the sum is 49.

The spelling of 28458782014 in words is "twenty-eight billion, four hundred fifty-eight million, seven hundred eighty-two thousand, fourteen".

Divisors: 1 2 13 26 29863 36653 59726 73306 388219 476489 776438 952978 1094568539 2189137078 14229391007 28458782014