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28136035200 = 27352721343107
BaseRepresentation
bin11010001101000010…
…011101001110000000
32200121211220200100210
4122031002131032000
5430110311111300
620531524514120
72014144232100
oct321502351600
980554820323
1028136035200
1110a29070759
12555284b940
13286516a550
14150ca81200
15aea188050
hex68d09d380

28136035200 has 1152 divisors, whose sum is σ = 119906075520. Its totient is φ = 5744148480.

The previous prime is 28136035153. The next prime is 28136035223. The reversal of 28136035200 is 253063182.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 262953547 + ... + 262953653.

It is an arithmetic number, because the mean of its divisors is an integer number (104085135).

Almost surely, 228136035200 is an apocalyptic number.

28136035200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28136035200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59953037760).

28136035200 is an abundant number, since it is smaller than the sum of its proper divisors (91770040320).

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

28136035200 is a wasteful number, since it uses less digits than its factorization.

28136035200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 28136035200 its reverse (253063182), we get a palindrome (28389098382).

The spelling of 28136035200 in words is "twenty-eight billion, one hundred thirty-six million, thirty-five thousand, two hundred".