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28060001260 = 2252635334601
BaseRepresentation
bin11010001000100000…
…011010001111101100
32200102112211202101221
4122020200122033230
5424431330020020
620520211113124
72012232034564
oct321040321754
980375752357
1028060001260
111099a159295
1255312a27a4
132852498455
14150292bda4
15ae36696aa
hex68881a3ec

28060001260 has 24 divisors (see below), whose sum is σ = 59150066976. Its totient is φ = 11181321600.

The previous prime is 28060001243. The next prime is 28060001297. The reversal of 28060001260 is 6210006082.

It is a super-2 number, since 2×280600012602 (a number of 22 digits) contains 22 as substring.

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, 2662041 + ... + 2672560.

It is an arithmetic number, because the mean of its divisors is an integer number (2464586124).

Almost surely, 228060001260 is an apocalyptic number.

28060001260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28060001260 is an abundant number, since it is smaller than the sum of its proper divisors (31090065716).

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

28060001260 is a wasteful number, since it uses less digits than its factorization.

28060001260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334873 (or 5334871 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 28060001260 in words is "twenty-eight billion, sixty million, one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 263 526 1052 1315 2630 5260 5334601 10669202 21338404 26673005 53346010 106692020 1403000063 2806000126 5612000252 7015000315 14030000630 28060001260