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25286130 = 2325280957
BaseRepresentation
bin110000001110…
…1010111110010
31202120200001100
41200131113302
522433124010
62301545230
7424633332
oct140352762
952520040
1025286130
1113300931
128575216
13531450c
1435030c2
1523472c0
hex181d5f2

25286130 has 24 divisors (see below), whose sum is σ = 65744172. Its totient is φ = 6742944.

The previous prime is 25286117. The next prime is 25286137. The reversal of 25286130 is 3168252.

25286130 is a `hidden beast` number, since 2 + 528 + 6 + 130 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22268961 + 3017169 = 4719^2 + 1737^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25286094 and 25286103.

It is not an unprimeable number, because it can be changed into a prime (25286137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140389 + ... + 140568.

Almost surely, 225286130 is an apocalyptic number.

25286130 is an abundant number, since it is smaller than the sum of its proper divisors (40458042).

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

25286130 is a wasteful number, since it uses less digits than its factorization.

25286130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280970 (or 280967 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 25286130 is about 5028.5315948098. The cubic root of 25286130 is about 293.5130771076.

The spelling of 25286130 in words is "twenty-five million, two hundred eighty-six thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 280957 561914 842871 1404785 1685742 2528613 2809570 4214355 5057226 8428710 12643065 25286130