Search a number
-
+
25005313 = 316831181
BaseRepresentation
bin101111101100…
…0110100000001
31202001101211201
41133120310001
522400132223
62251541201
7422353534
oct137306401
952041751
1025005313
1113129953
12845a801
135246758
14346ca1b
1522ddead
hex17d8d01

25005313 has 8 divisors (see below), whose sum is σ = 25871616. Its totient is φ = 24142800.

The previous prime is 25005307. The next prime is 25005353. The reversal of 25005313 is 31350052.

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

It is a de Polignac number, because none of the positive numbers 2k-25005313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25005353) 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, 20583 + ... + 21763.

It is an arithmetic number, because the mean of its divisors is an integer number (3233952).

Almost surely, 225005313 is an apocalyptic number.

It is an amenable number.

25005313 is a deficient number, since it is larger than the sum of its proper divisors (866303).

25005313 is a wasteful number, since it uses less digits than its factorization.

25005313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25005313 is about 5000.5312717750. The cubic root of 25005313 is about 292.4224860958.

Adding to 25005313 its reverse (31350052), we get a palindrome (56355365).

The spelling of 25005313 in words is "twenty-five million, five thousand, three hundred thirteen".

Divisors: 1 31 683 1181 21173 36611 806623 25005313