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28538080600 = 2352442332261
BaseRepresentation
bin11010100101000000…
…001000110101011000
32201122212102200222011
4122211000020311120
5431421222034400
621035450035304
72030125453111
oct324500106530
981585380864
1028538080600
1111115003387
125645418b34
1328ca546b33
14154a219208
15b206028ba
hex6a5008d58

28538080600 has 48 divisors (see below), whose sum is σ = 66368095920. Its totient is φ = 11412297600.

The previous prime is 28538080589. The next prime is 28538080609. The reversal of 28538080600 is 608083582.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28538080609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868470 + ... + 900730.

It is an arithmetic number, because the mean of its divisors is an integer number (1382668665).

Almost surely, 228538080600 is an apocalyptic number.

28538080600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28538080600 is an abundant number, since it is smaller than the sum of its proper divisors (37830015320).

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

28538080600 is a wasteful number, since it uses less digits than its factorization.

28538080600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36700 (or 36691 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 28538080600 in words is "twenty-eight billion, five hundred thirty-eight million, eighty thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 4423 8846 17692 22115 32261 35384 44230 64522 88460 110575 129044 161305 176920 221150 258088 322610 442300 645220 806525 884600 1290440 1613050 3226100 6452200 142690403 285380806 570761612 713452015 1141523224 1426904030 2853808060 3567260075 5707616120 7134520150 14269040300 28538080600