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25302013 = 1115115233
BaseRepresentation
bin110000010000…
…1001111111101
31202121110211121
41200201033331
522434131023
62302150541
7425030542
oct140411775
952543747
1025302013
1113311860
128582451
13531b809
143508bc9
15234bd5d
hex18213fd

25302013 has 8 divisors (see below), whose sum is σ = 27786816. Its totient is φ = 22848000.

The previous prime is 25301993. The next prime is 25302023. The reversal of 25302013 is 31020352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25302013 is a prime.

It is a super-3 number, since 3×253020133 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25302023) 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 7 ways as a sum of consecutive naturals, for example, 5956 + ... + 9277.

It is an arithmetic number, because the mean of its divisors is an integer number (3473352).

Almost surely, 225302013 is an apocalyptic number.

It is an amenable number.

25302013 is a deficient number, since it is larger than the sum of its proper divisors (2484803).

25302013 is a wasteful number, since it uses less digits than its factorization.

25302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15395.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 25302013 is about 5030.1106349662. The cubic root of 25302013 is about 293.5745191242.

Adding to 25302013 its reverse (31020352), we get a palindrome (56322365).

The spelling of 25302013 in words is "twenty-five million, three hundred two thousand, thirteen".

Divisors: 1 11 151 1661 15233 167563 2300183 25302013