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25213086 = 233466909
BaseRepresentation
bin110000000101…
…1100010011110
31202102221212000
41200023202132
522423304321
62300223130
7424210353
oct140134236
952387760
1025213086
1113260a68
12853aaa6
1352ba1b2
1434c462a
152330826
hex180b89e

25213086 has 16 divisors (see below), whose sum is σ = 56029200. Its totient is φ = 8404344.

The previous prime is 25213079. The next prime is 25213099. The reversal of 25213086 is 68031252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233401 + ... + 233508.

It is an arithmetic number, because the mean of its divisors is an integer number (3501825).

Almost surely, 225213086 is an apocalyptic number.

25213086 is an abundant number, since it is smaller than the sum of its proper divisors (30816114).

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

25213086 is a wasteful number, since it uses less digits than its factorization.

25213086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466920 (or 466914 counting only the distinct ones).

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

The square root of 25213086 is about 5021.2633868380. The cubic root of 25213086 is about 293.2301809592.

The spelling of 25213086 in words is "twenty-five million, two hundred thirteen thousand, eighty-six".

Divisors: 1 2 3 6 9 18 27 54 466909 933818 1400727 2801454 4202181 8404362 12606543 25213086