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25206313 = 118925747
BaseRepresentation
bin110000000100…
…1111000101001
31202102121120011
41200021320221
522423100223
62300131521
7424151536
oct140117051
952377504
1025206313
1113256970
128536ba1
1352b70a2
1434c1d8d
15232d80d
hex1809e29

25206313 has 8 divisors (see below), whose sum is σ = 27807840. Its totient is φ = 22656480.

The previous prime is 25206289. The next prime is 25206329. The reversal of 25206313 is 31360252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25206313 - 25 = 25206281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25206343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11895 + ... + 13852.

It is an arithmetic number, because the mean of its divisors is an integer number (3475980).

Almost surely, 225206313 is an apocalyptic number.

It is an amenable number.

25206313 is a deficient number, since it is larger than the sum of its proper divisors (2601527).

25206313 is a wasteful number, since it uses less digits than its factorization.

25206313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25847.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 25206313 is about 5020.5889096798. The cubic root of 25206313 is about 293.2039217662.

Adding to 25206313 its reverse (31360252), we get a palindrome (56566565).

The spelling of 25206313 in words is "twenty-five million, two hundred six thousand, three hundred thirteen".

Divisors: 1 11 89 979 25747 283217 2291483 25206313