Search a number
-
+
25313390 = 255414679
BaseRepresentation
bin110000010010…
…0000001101110
31202122001102222
41200210001232
522440012030
62302315342
7425105654
oct140440156
952561388
1025313390
111331a363
128588b52
135323a4b
14350cdd4
1523503e5
hex182406e

25313390 has 16 divisors (see below), whose sum is σ = 45658080. Its totient is φ = 10104480.

The previous prime is 25313371. The next prime is 25313437. The reversal of 25313390 is 9331352.

It is a super-3 number, since 3×253133903 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3071 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (2853630).

Almost surely, 225313390 is an apocalyptic number.

25313390 is a deficient number, since it is larger than the sum of its proper divisors (20344690).

25313390 is a wasteful number, since it uses less digits than its factorization.

25313390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5227.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 25313390 is about 5031.2413975082. The cubic root of 25313390 is about 293.6185142643.

The spelling of 25313390 in words is "twenty-five million, three hundred thirteen thousand, three hundred ninety".

Divisors: 1 2 5 10 541 1082 2705 4679 5410 9358 23395 46790 2531339 5062678 12656695 25313390