Search a number
-
+
25104130015 = 561601113693
BaseRepresentation
bin10111011000010100…
…101001111111011111
32101210112211221100011
4113120110221333133
5402403124130030
615311020344051
71546050404266
oct273024517737
971715757304
1025104130015
11a712699498
124a473a5027
1324a0c94b03
1413021315dd
159bdde0b2a
hex5d8529fdf

25104130015 has 16 divisors (see below), whose sum is σ = 30626138016. Its totient is φ = 19749340800.

The previous prime is 25104130001. The next prime is 25104130033. The reversal of 25104130015 is 51003140152.

It is a happy number.

It is not a de Polignac number, because 25104130015 - 27 = 25104129887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1826509 + ... + 1840201.

It is an arithmetic number, because the mean of its divisors is an integer number (1914133626).

Almost surely, 225104130015 is an apocalyptic number.

25104130015 is a deficient number, since it is larger than the sum of its proper divisors (5522008001).

25104130015 is a wasteful number, since it uses less digits than its factorization.

25104130015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19770.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 25104130015 its reverse (51003140152), we get a palindrome (76107270167).

The spelling of 25104130015 in words is "twenty-five billion, one hundred four million, one hundred thirty thousand, fifteen".

Divisors: 1 5 61 305 6011 13693 30055 68465 366671 835273 1833355 4176365 82308623 411543115 5020826003 25104130015