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25313030204 = 2271182185163
BaseRepresentation
bin10111100100110001…
…100011000000111100
32102100002221011112012
4113210301203000330
5403320113431304
615343442030352
71554165130610
oct274461430074
972302834465
1025313030204
11a80a600280
124aa53483b8
1325053471a7
141321b8d340
159d240716e
hex5e4c6303c

25313030204 has 24 divisors (see below), whose sum is σ = 55228430208. Its totient is φ = 9862219440.

The previous prime is 25313030201. The next prime is 25313030227. The reversal of 25313030204 is 40203031352.

It is a self number, because there is not a number n which added to its sum of digits gives 25313030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25313030201) 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, 41092274 + ... + 41092889.

It is an arithmetic number, because the mean of its divisors is an integer number (2301184592).

Almost surely, 225313030204 is an apocalyptic number.

It is an amenable number.

25313030204 is an abundant number, since it is smaller than the sum of its proper divisors (29915400004).

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

25313030204 is a wasteful number, since it uses less digits than its factorization.

25313030204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82185185 (or 82185183 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 25313030204 its reverse (40203031352), we get a palindrome (65516061556).

The spelling of 25313030204 in words is "twenty-five billion, three hundred thirteen million, thirty thousand, two hundred four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 82185163 164370326 328740652 575296141 904036793 1150592282 1808073586 2301184564 3616147172 6328257551 12656515102 25313030204