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28613428627 = 727164312791
BaseRepresentation
bin11010101001011111…
…100100010110010011
32201212010012210000211
4122221133210112103
5432100014204002
621051141024551
72032032062500
oct325137442623
981763183024
1028613428627
1111153597483
1256666b5157
132910038974
1415562304a7
15b27037dd7
hex6a97e4593

28613428627 has 24 divisors (see below), whose sum is σ = 33808948992. Its totient is φ = 24140869200.

The previous prime is 28613428619. The next prime is 28613428663. The reversal of 28613428627 is 72682431682.

It is not a de Polignac number, because 28613428627 - 23 = 28613428619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (28613488627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2230602 + ... + 2243392.

It is an arithmetic number, because the mean of its divisors is an integer number (1408706208).

Almost surely, 228613428627 is an apocalyptic number.

28613428627 is a deficient number, since it is larger than the sum of its proper divisors (5195520365).

28613428627 is a wasteful number, since it uses less digits than its factorization.

28613428627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13519 (or 13512 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The spelling of 28613428627 in words is "twenty-eight billion, six hundred thirteen million, four hundred twenty-eight thousand, six hundred twenty-seven".

Divisors: 1 7 49 71 497 643 3479 4501 12791 31507 45653 89537 319571 626759 908161 2236997 6357127 8224613 44499889 57572291 403006037 583947523 4087632661 28613428627