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28082577560 = 235702064439
BaseRepresentation
bin11010001001110110…
…100010000010011000
32200111010022202021012
4122021312202002120
5430003114440220
620522335033052
72012624653652
oct321166420230
980433282235
1028082577560
1110a00979194
12553896b788
1328570713cb
1415059276d2
15ae5628ac5
hex689da2098

28082577560 has 16 divisors (see below), whose sum is σ = 63185799600. Its totient is φ = 11233031008.

The previous prime is 28082577527. The next prime is 28082577563. The reversal of 28082577560 is 6577528082.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28082577499 and 28082577508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082577563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351032180 + ... + 351032259.

It is an arithmetic number, because the mean of its divisors is an integer number (3949112475).

Almost surely, 228082577560 is an apocalyptic number.

28082577560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28082577560 is an abundant number, since it is smaller than the sum of its proper divisors (35103222040).

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

28082577560 is a wasteful number, since it uses less digits than its factorization.

28082577560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702064450 (or 702064446 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 28082577560 in words is "twenty-eight billion, eighty-two million, five hundred seventy-seven thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 702064439 1404128878 2808257756 3510322195 5616515512 7020644390 14041288780 28082577560