Search a number
-
+
25510130 = 252551013
BaseRepresentation
bin110000101010…
…0000011110010
31210000001022122
41201110003302
523012311010
62310434242
7426555362
oct141240362
953001278
1025510130
1113444158
128662982
135392469
1435609a2
15238d855
hex18540f2

25510130 has 8 divisors (see below), whose sum is σ = 45918252. Its totient is φ = 10204048.

The previous prime is 25510129. The next prime is 25510157. The reversal of 25510130 is 3101552.

It can be written as a sum of positive squares in 2 ways, for example, as 22458121 + 3052009 = 4739^2 + 1747^2 .

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 = 25510099 and 25510108.

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, 1275497 + ... + 1275516.

Almost surely, 225510130 is an apocalyptic number.

25510130 is a deficient number, since it is larger than the sum of its proper divisors (20408122).

25510130 is a wasteful number, since it uses less digits than its factorization.

25510130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551020.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 25510130 is about 5050.7553890483. The cubic root of 25510130 is about 294.3772364572.

Adding to 25510130 its reverse (3101552), we get a palindrome (28611682).

The spelling of 25510130 in words is "twenty-five million, five hundred ten thousand, one hundred thirty".

Divisors: 1 2 5 10 2551013 5102026 12755065 25510130