Search a number
-
+
25471130 = 252547113
BaseRepresentation
bin110000100101…
…0100010011010
31202221001211012
41201022202122
523010034010
62305533522
7426333566
oct141124232
952831735
1025471130
1113417923
1286442a2
13537a799
1435506a6
152382005
hex184a89a

25471130 has 8 divisors (see below), whose sum is σ = 45848052. Its totient is φ = 10188448.

The previous prime is 25471091. The next prime is 25471157. The reversal of 25471130 is 3117452.

It can be written as a sum of positive squares in 2 ways, for example, as 21780889 + 3690241 = 4667^2 + 1921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25471096 and 25471105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273547 + ... + 1273566.

Almost surely, 225471130 is an apocalyptic number.

25471130 is a deficient number, since it is larger than the sum of its proper divisors (20376922).

25471130 is a wasteful number, since it uses less digits than its factorization.

25471130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547120.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 25471130 is about 5046.8931036827. The cubic root of 25471130 is about 294.2271448689.

Adding to 25471130 its reverse (3117452), we get a palindrome (28588582).

The spelling of 25471130 in words is "twenty-five million, four hundred seventy-one thousand, one hundred thirty".

Divisors: 1 2 5 10 2547113 5094226 12735565 25471130