Search a number
-
+
28425793189 = 412113285839
BaseRepresentation
bin11010011110010011…
…110010111010100101
32201101001010220121011
4122132103302322211
5431204000340224
621020355222221
72024263153423
oct323623627245
981331126534
1028425793189
111106768a172
1256138a7971
1328b01c0591
14153934a113
15b15822394
hex69e4f2ea5

28425793189 has 8 divisors (see below), whose sum is σ = 29257119360. Its totient is φ = 27601039200.

The previous prime is 28425793181. The next prime is 28425793223. The reversal of 28425793189 is 98139752482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28425793189 - 23 = 28425793181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425793181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1634269 + ... + 1651570.

It is an arithmetic number, because the mean of its divisors is an integer number (3657139920).

Almost surely, 228425793189 is an apocalyptic number.

It is an amenable number.

28425793189 is a deficient number, since it is larger than the sum of its proper divisors (831326171).

28425793189 is a wasteful number, since it uses less digits than its factorization.

28425793189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286091.

The product of its digits is 8709120, while the sum is 58.

The spelling of 28425793189 in words is "twenty-eight billion, four hundred twenty-five million, seven hundred ninety-three thousand, one hundred eighty-nine".

Divisors: 1 41 211 8651 3285839 134719399 693312029 28425793189