Search a number
-
+
25431034 = 283239641
BaseRepresentation
bin110000100000…
…0101111111010
31202212000211011
41201000233322
523002243114
62305024134
7426105646
oct141005772
952760734
1025431034
111339a792
12862504a
135365465
14353dc26
1523751c4
hex1840bfa

25431034 has 16 divisors (see below), whose sum is σ = 38828160. Its totient is φ = 12490240.

The previous prime is 25431013. The next prime is 25431053. The reversal of 25431034 is 43013452.

It is a junction number, because it is equal to n+sod(n) for n = 25430996 and 25431014.

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, 39354 + ... + 39994.

It is an arithmetic number, because the mean of its divisors is an integer number (2426760).

Almost surely, 225431034 is an apocalyptic number.

25431034 is a deficient number, since it is larger than the sum of its proper divisors (13397126).

25431034 is a wasteful number, since it uses less digits than its factorization.

25431034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 25431034 is about 5042.9191942763. The cubic root of 25431034 is about 294.0726755099.

Adding to 25431034 its reverse (43013452), we get a palindrome (68444486).

The spelling of 25431034 in words is "twenty-five million, four hundred thirty-one thousand, thirty-four".

Divisors: 1 2 83 166 239 478 641 1282 19837 39674 53203 106406 153199 306398 12715517 25431034