Search a number
-
+
28056862824 = 23352110692099
BaseRepresentation
bin11010001000010100…
…011100000001101000
32200102022221022021120
4122020110130001220
5424430024102244
620520015535240
72012163253614
oct321024340150
980368838246
1028056862824
1110998405341
12553022a520
132851939aa3
141502352344
15ae3249819
hex68851c068

28056862824 has 64 divisors (see below), whose sum is σ = 70376040000. Its totient is φ = 9321162240.

The previous prime is 28056862817. The next prime is 28056862871. The reversal of 28056862824 is 42826865082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13365727 + ... + 13367825.

It is an arithmetic number, because the mean of its divisors is an integer number (1099625625).

Almost surely, 228056862824 is an apocalyptic number.

28056862824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28056862824 is an abundant number, since it is smaller than the sum of its proper divisors (42319177176).

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

28056862824 is a wasteful number, since it uses less digits than its factorization.

28056862824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3694 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 51.

The spelling of 28056862824 in words is "twenty-eight billion, fifty-six million, eight hundred sixty-two thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 521 1042 1069 1563 2084 2099 2138 3126 3207 4168 4198 4276 6252 6297 6414 8396 8552 12504 12594 12828 16792 25188 25656 50376 556949 1093579 1113898 1670847 2187158 2227796 2243831 3280737 3341694 4374316 4455592 4487662 6561474 6683388 6731493 8748632 8975324 13122948 13366776 13462986 17950648 26245896 26925972 53851944 1169035951 2338071902 3507107853 4676143804 7014215706 9352287608 14028431412 28056862824