Search a number
-
+
25850802873 = 3723409130859
BaseRepresentation
bin11000000100110100…
…111111001010111001
32110201120211211221110
4120010310333022321
5410420301142443
615513052230533
71603415125140
oct300464771271
973646754843
1025850802873
11aa661168a5
12501546b449
13258c89607c
141373378757
15a14732233
hex604d3f2b9

25850802873 has 32 divisors (see below), whose sum is σ = 41205196800. Its totient is φ = 14094976896.

The previous prime is 25850802799. The next prime is 25850802899. The reversal of 25850802873 is 37820805852.

It is not a de Polignac number, because 25850802873 - 212 = 25850798777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25850802073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132118 + ... + 262976.

It is an arithmetic number, because the mean of its divisors is an integer number (1287662400).

Almost surely, 225850802873 is an apocalyptic number.

25850802873 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25850802873 is a deficient number, since it is larger than the sum of its proper divisors (15354393927).

25850802873 is a wasteful number, since it uses less digits than its factorization.

25850802873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131301.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 25850802873 in words is "twenty-five billion, eight hundred fifty million, eight hundred two thousand, eight hundred seventy-three".

Divisors: 1 3 7 21 23 69 161 409 483 1227 2863 8589 9407 28221 65849 130859 197547 392577 916013 2748039 3009757 9029271 21068299 53521331 63204897 160563993 374649317 1123947951 1230990613 3692971839 8616934291 25850802873