Search a number
-
+
25230024961 = 23250993701
BaseRepresentation
bin10111011111110100…
…111010000100000001
32102010022202001201221
4113133310322010001
5403132341244321
615331314555041
71552136450041
oct273764720401
972108661657
1025230024961
11a7777671a9
124a81598a81
1324c10a3c6b
141314b43721
159c9eace41
hex5dfd3a101

25230024961 has 12 divisors (see below), whose sum is σ = 26426775060. Its totient is φ = 24085397600.

The previous prime is 25230024949. The next prime is 25230024973. The reversal of 25230024961 is 16942003252.

It is an interprime number because it is at equal distance from previous prime (25230024949) and next prime (25230024973).

It can be written as a sum of positive squares in 2 ways, for example, as 22903795600 + 2326229361 = 151340^2 + 48231^2 .

It is a de Polignac number, because none of the positive numbers 2k-25230024961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25230024161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222411 + ... + 316111.

It is an arithmetic number, because the mean of its divisors is an integer number (2202231255).

Almost surely, 225230024961 is an apocalyptic number.

It is an amenable number.

25230024961 is a deficient number, since it is larger than the sum of its proper divisors (1196750099).

25230024961 is an equidigital number, since it uses as much as digits as its factorization.

25230024961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94256 (or 94233 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 25230024961 in words is "twenty-five billion, two hundred thirty million, twenty-four thousand, nine hundred sixty-one".

Divisors: 1 23 509 529 11707 93701 269261 2155123 47693809 49567829 1096957607 25230024961