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28835113960 = 235720877849
BaseRepresentation
bin11010110110101101…
…001110101111101000
32202102120100120010201
4122312231032233220
5433023242121320
621125140321544
72040363265432
oct326655165750
982376316121
1028835113960
11112577409a4
1257089a32b4
132946c46513
141577859652
15b3b72770a
hex6b6b4ebe8

28835113960 has 16 divisors (see below), whose sum is σ = 64879006500. Its totient is φ = 11534045568.

The previous prime is 28835113949. The next prime is 28835113981. The reversal of 28835113960 is 6931153882.

It can be written as a sum of positive squares in 2 ways, for example, as 28834077636 + 1036324 = 169806^2 + 1018^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28835113960.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360438885 + ... + 360438964.

Almost surely, 228835113960 is an apocalyptic number.

28835113960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28835113960 is an abundant number, since it is smaller than the sum of its proper divisors (36043892540).

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

28835113960 is a wasteful number, since it uses less digits than its factorization.

28835113960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720877860 (or 720877856 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 28835113960 in words is "twenty-eight billion, eight hundred thirty-five million, one hundred thirteen thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 720877849 1441755698 2883511396 3604389245 5767022792 7208778490 14417556980 28835113960