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25865830060 = 2257341354133
BaseRepresentation
bin11000000101101110…
…010011111010101100
32110202122010022100221
4120011232103322230
5410433123030220
615514350301124
71603656633160
oct300556237254
973678108327
1025865830060
11aa7364aa64
12501a4b77a4
132592a27bb5
14137536aca0
15a15bee9aa
hex605b93eac

25865830060 has 48 divisors (see below), whose sum is σ = 62097327936. Its totient is φ = 8865522432.

The previous prime is 25865830057. The next prime is 25865830087. The reversal of 25865830060 is 6003856852.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25865829989 and 25865830016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450754 + ... + 504886.

It is an arithmetic number, because the mean of its divisors is an integer number (1293694332).

Almost surely, 225865830060 is an apocalyptic number.

25865830060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25865830060 is an abundant number, since it is smaller than the sum of its proper divisors (36231497876).

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

25865830060 is a wasteful number, since it uses less digits than its factorization.

25865830060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57562 (or 57560 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 25865830060 in words is "twenty-five billion, eight hundred sixty-five million, eight hundred thirty thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3413 6826 13652 17065 23891 34130 47782 54133 68260 95564 108266 119455 216532 238910 270665 378931 477820 541330 757862 1082660 1515724 1894655 3789310 7578620 184755929 369511858 739023716 923779645 1293291503 1847559290 2586583006 3695118580 5173166012 6466457515 12932915030 25865830060