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25311713 = 77150929
BaseRepresentation
bin110000010001…
…1100111100001
31202121222010212
41200203213201
522434433323
62302303505
7425101040
oct140434741
952558125
1025311713
1113319079
128587b95
13532305b
14350c557
15234eb78
hex18239e1

25311713 has 8 divisors (see below), whose sum is σ = 29335680. Its totient is φ = 21389760.

The previous prime is 25311703. The next prime is 25311721. The reversal of 25311713 is 31711352.

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

It is not a de Polignac number, because 25311713 - 218 = 25049569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25311703) 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 7 ways as a sum of consecutive naturals, for example, 24968 + ... + 25961.

It is an arithmetic number, because the mean of its divisors is an integer number (3666960).

Almost surely, 225311713 is an apocalyptic number.

It is an amenable number.

25311713 is a deficient number, since it is larger than the sum of its proper divisors (4023967).

25311713 is an equidigital number, since it uses as much as digits as its factorization.

25311713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51007.

The product of its digits is 630, while the sum is 23.

The square root of 25311713 is about 5031.0747360778. The cubic root of 25311713 is about 293.6120300923.

The spelling of 25311713 in words is "twenty-five million, three hundred eleven thousand, seven hundred thirteen".

Divisors: 1 7 71 497 50929 356503 3615959 25311713