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25085115748 = 22711174790893
BaseRepresentation
bin10111010111001100…
…000111110101100100
32101202020001220200001
4113113030013311210
5402333242200443
615305101031044
71545426652150
oct272714076544
971666056601
1025085115748
11a702991820
124a40b55484
13249a068274
1412dd7c2060
159bc3d6d4d
hex5d7307d64

25085115748 has 48 divisors (see below), whose sum is σ = 57950653824. Its totient is φ = 9198512640.

The previous prime is 25085115721. The next prime is 25085115751. The reversal of 25085115748 is 84751158052.

It is a junction number, because it is equal to n+sod(n) for n = 25085115698 and 25085115707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2390211 + ... + 2400682.

It is an arithmetic number, because the mean of its divisors is an integer number (1207305288).

Almost surely, 225085115748 is an apocalyptic number.

25085115748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25085115748 is an abundant number, since it is smaller than the sum of its proper divisors (32865538076).

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

25085115748 is a wasteful number, since it uses less digits than its factorization.

25085115748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790932 (or 4790930 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 46.

The spelling of 25085115748 in words is "twenty-five billion, eighty-five million, one hundred fifteen thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 11 14 17 22 28 34 44 68 77 119 154 187 238 308 374 476 748 1309 2618 5236 4790893 9581786 19163572 33536251 52699823 67072502 81445181 105399646 134145004 162890362 210799292 325780724 368898761 570116267 737797522 895896991 1140232534 1475595044 1791793982 2280465068 3583587964 6271278937 12542557874 25085115748