Search a number
-
+
25260695850 = 23521312954203
BaseRepresentation
bin10111100001101001…
…111010000100101010
32102012110110022021210
4113201221322010222
5403213214231400
615334332213550
71552661241405
oct274151720452
972173408253
1025260695850
11a793005745
124a8b90a2b6
1324c7552410
141318c48d3c
159cca1a950
hex5e1a7a12a

25260695850 has 48 divisors (see below), whose sum is σ = 67465494432. Its totient is φ = 6218016960.

The previous prime is 25260695821. The next prime is 25260695857. The reversal of 25260695850 is 5859606252.

25260695850 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 25260695850.

It is not an unprimeable number, because it can be changed into a prime (25260695857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6475152 + ... + 6479051.

It is an arithmetic number, because the mean of its divisors is an integer number (1405531134).

Almost surely, 225260695850 is an apocalyptic number.

25260695850 is an abundant number, since it is smaller than the sum of its proper divisors (42204798582).

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

25260695850 is a wasteful number, since it uses less digits than its factorization.

25260695850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12954231 (or 12954226 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 25260695850 in words is "twenty-five billion, two hundred sixty million, six hundred ninety-five thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1950 12954203 25908406 38862609 64771015 77725218 129542030 168404639 194313045 323855075 336809278 388626090 505213917 647710150 842023195 971565225 1010427834 1684046390 1943130450 2526069585 4210115975 5052139170 8420231950 12630347925 25260695850