Search a number
-
+
25482197 = 134147809
BaseRepresentation
bin110000100110…
…1001111010101
31202221122000002
41201031033111
523010412242
62310101045
7426411056
oct141151725
952848002
1025482197
1113425174
12864a785
135382830
14355472d
152385432
hex184d3d5

25482197 has 8 divisors (see below), whose sum is σ = 28112280. Its totient is φ = 22947840.

The previous prime is 25482151. The next prime is 25482203. The reversal of 25482197 is 79128452.

It can be written as a sum of positive squares in 4 ways, for example, as 3118756 + 22363441 = 1766^2 + 4729^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25482197 - 224 = 8704981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25482197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25482997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23372 + ... + 24437.

It is an arithmetic number, because the mean of its divisors is an integer number (3514035).

Almost surely, 225482197 is an apocalyptic number.

It is an amenable number.

25482197 is a deficient number, since it is larger than the sum of its proper divisors (2630083).

25482197 is a wasteful number, since it uses less digits than its factorization.

25482197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47863.

The product of its digits is 40320, while the sum is 38.

The square root of 25482197 is about 5047.9894017321. The cubic root of 25482197 is about 294.2697518038.

It can be divided in two parts, 2548 and 2197, that multiplied together give a square (5597956 = 23662).

The spelling of 25482197 in words is "twenty-five million, four hundred eighty-two thousand, one hundred ninety-seven".

Divisors: 1 13 41 533 47809 621517 1960169 25482197