Search a number
-
+
25419186930 = 23517149334507
BaseRepresentation
bin10111101011000110…
…100000001011110010
32102121111200111011210
4113223012200023302
5404024302440210
615402153220550
71556624344464
oct275306401362
972544614153
1025419186930
11a864517405
124b14a01756
132521335117
141331d04134
159db8c5e20
hex5eb1a02f2

25419186930 has 64 divisors (see below), whose sum is σ = 65028355200. Its totient is φ = 6336881664.

The previous prime is 25419186899. The next prime is 25419186931. The reversal of 25419186930 is 3968191452.

It is a super-2 number, since 2×254191869302 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25419186930.

It is not an unprimeable number, because it can be changed into a prime (25419186931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91264 + ... + 243243.

It is an arithmetic number, because the mean of its divisors is an integer number (1016068050).

Almost surely, 225419186930 is an apocalyptic number.

25419186930 is an abundant number, since it is smaller than the sum of its proper divisors (39609168270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25419186930 is a wasteful number, since it uses less digits than its factorization.

25419186930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334683.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 25419186930 in words is "twenty-five billion, four hundred nineteen million, one hundred eighty-six thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 149 170 255 298 447 510 745 894 1490 2235 2533 4470 5066 7599 12665 15198 25330 37995 75990 334507 669014 1003521 1672535 2007042 3345070 5017605 5686619 10035210 11373238 17059857 28433095 34119714 49841543 56866190 85299285 99683086 149524629 170598570 249207715 299049258 498415430 747623145 847306231 1495246290 1694612462 2541918693 4236531155 5083837386 8473062310 12709593465 25419186930