Search a number
-
+
28683498688 = 261334475359
BaseRepresentation
bin11010101101101010…
…110111010011000000
32202001000001201002021
4122231222313103000
5432220433424223
621102122531224
72033542500415
oct325552672300
982030051067
1028683498688
111118a0a6119
125686066b14
132921700340
14156167010c
15b2d27965d
hex6adab74c0

28683498688 has 28 divisors (see below), whose sum is σ = 61297190080. Its totient is φ = 13238537472.

The previous prime is 28683498653. The next prime is 28683498731. The reversal of 28683498688 is 88689438682.

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, 17236848 + ... + 17238511.

It is an arithmetic number, because the mean of its divisors is an integer number (2189185360).

Almost surely, 228683498688 is an apocalyptic number.

It is an amenable number.

28683498688 is an abundant number, since it is smaller than the sum of its proper divisors (32613691392).

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

28683498688 is a wasteful number, since it uses less digits than its factorization.

28683498688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34475384 (or 34475374 counting only the distinct ones).

The product of its digits is 254803968, while the sum is 70.

The spelling of 28683498688 in words is "twenty-eight billion, six hundred eighty-three million, four hundred ninety-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 832 34475359 68950718 137901436 275802872 448179667 551605744 896359334 1103211488 1792718668 2206422976 3585437336 7170874672 14341749344 28683498688