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28727943483 = 323835016229
BaseRepresentation
bin11010110000010100…
…011010000100111011
32202011002200201212210
4122300110122010323
5432313323142413
621110351310203
72034622330161
oct326024320473
982132621783
1028727943483
11112021a2158
125698b1b363
13292a992035
14156751d231
15b321083c3
hex6b051a13b

28727943483 has 16 divisors (see below), whose sum is σ = 40450878720. Its totient is φ = 18098550624.

The previous prime is 28727943469. The next prime is 28727943499. The reversal of 28727943483 is 38434972782.

It is a happy number.

It is not a de Polignac number, because 28727943483 - 24 = 28727943467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28727943403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502388 + ... + 2513841.

It is an arithmetic number, because the mean of its divisors is an integer number (2528179920).

Almost surely, 228727943483 is an apocalyptic number.

28727943483 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28727943483 is a deficient number, since it is larger than the sum of its proper divisors (11722935237).

28727943483 is a wasteful number, since it uses less digits than its factorization.

28727943483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016338.

The product of its digits is 16257024, while the sum is 57.

The spelling of 28727943483 in words is "twenty-eight billion, seven hundred twenty-seven million, nine hundred forty-three thousand, four hundred eighty-three".

Divisors: 1 3 23 69 83 249 1909 5727 5016229 15048687 115373267 346119801 416347007 1249041021 9575981161 28727943483