Search a number
-
+
28850919213 = 3107283317591
BaseRepresentation
bin11010110111101001…
…100001011100101101
32202110200002112212110
4122313221201130231
5433041313403323
621130503154233
72040644524044
oct326751413455
982420075773
1028850919213
1111265656696
125712145979
13294a2bb53c
1415799b155b
15b3ccea793
hex6b7a6172d

28850919213 has 16 divisors (see below), whose sum is σ = 38964727296. Its totient is φ = 18986800560.

The previous prime is 28850919179. The next prime is 28850919217. The reversal of 28850919213 is 31291905882.

It is not a de Polignac number, because 28850919213 - 210 = 28850918189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28850919217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67953 + ... + 249638.

It is an arithmetic number, because the mean of its divisors is an integer number (2435295456).

Almost surely, 228850919213 is an apocalyptic number.

It is an amenable number.

28850919213 is a deficient number, since it is larger than the sum of its proper divisors (10113808083).

28850919213 is a wasteful number, since it uses less digits than its factorization.

28850919213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317984.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 28850919213 in words is "twenty-eight billion, eight hundred fifty million, nine hundred nineteen thousand, two hundred thirteen".

Divisors: 1 3 107 283 321 849 30281 90843 317591 952773 33982237 89878253 101946711 269634759 9616973071 28850919213