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25282213 = 1117353383
BaseRepresentation
bin110000001110…
…0011010100101
31202120110200021
41200130122211
522433012323
62301515141
7424616035
oct140343245
952513607
1025282213
11132a89a0
128572ab1
1353127b8
1435018c5
15234605d
hex181c6a5

25282213 has 16 divisors (see below), whose sum is σ = 29362176. Its totient is φ = 21514240.

The previous prime is 25282207. The next prime is 25282241. The reversal of 25282213 is 31228252.

It is a de Polignac number, because none of the positive numbers 2k-25282213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25282253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 65820 + ... + 66202.

It is an arithmetic number, because the mean of its divisors is an integer number (1835136).

Almost surely, 225282213 is an apocalyptic number.

It is an amenable number.

25282213 is a deficient number, since it is larger than the sum of its proper divisors (4079963).

25282213 is a wasteful number, since it uses less digits than its factorization.

25282213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 1920, while the sum is 25.

The square root of 25282213 is about 5028.1421022083. The cubic root of 25282213 is about 293.4979205759.

The spelling of 25282213 in words is "twenty-five million, two hundred eighty-two thousand, two hundred thirteen".

Divisors: 1 11 17 187 353 383 3883 4213 6001 6511 66011 71621 135199 1487189 2298383 25282213