Search a number
-
+
25230887 = 118532689
BaseRepresentation
bin110000000111…
…1111000100111
31202110212021022
41200033320213
522424342022
62300441355
7424313303
oct140177047
952425238
1025230887
1113273380
12854925b
1352c5326
1434cad03
152335c42
hex180fe27

25230887 has 8 divisors (see below), whose sum is σ = 27567120. Its totient is φ = 22901760.

The previous prime is 25230851. The next prime is 25230893. The reversal of 25230887 is 78803252.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25230887 - 220 = 24182311 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 (25230817) 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, 8039 + ... + 10727.

It is an arithmetic number, because the mean of its divisors is an integer number (3445890).

Almost surely, 225230887 is an apocalyptic number.

25230887 is a deficient number, since it is larger than the sum of its proper divisors (2336233).

25230887 is a wasteful number, since it uses less digits than its factorization.

25230887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 25230887 is about 5023.0356359476. The cubic root of 25230887 is about 293.2991737368.

The spelling of 25230887 in words is "twenty-five million, two hundred thirty thousand, eight hundred eighty-seven".

Divisors: 1 11 853 2689 9383 29579 2293717 25230887