Search a number
-
+
25302238 = 2137313331
BaseRepresentation
bin110000010000…
…1010011011110
31202121111010221
41200201103132
522434132423
62302151554
7425031313
oct140412336
952544127
1025302238
1113311a45
1285825ba
13531b950
143508d0a
15234be5d
hex18214de

25302238 has 16 divisors (see below), whose sum is σ = 41435856. Its totient is φ = 11517120.

The previous prime is 25302223. The next prime is 25302241. The reversal of 25302238 is 83220352.

It is a congruent number.

It is an unprimeable number.

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, 4768 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (2589741).

Almost surely, 225302238 is an apocalyptic number.

25302238 is a deficient number, since it is larger than the sum of its proper divisors (16133618).

25302238 is a wasteful number, since it uses less digits than its factorization.

25302238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13419.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 25302238 is about 5030.1330002297. The cubic root of 25302238 is about 293.5753893326.

The spelling of 25302238 in words is "twenty-five million, three hundred two thousand, two hundred thirty-eight".

Divisors: 1 2 13 26 73 146 949 1898 13331 26662 173303 346606 973163 1946326 12651119 25302238