Search a number
-
+
245130441 = 381710147
BaseRepresentation
bin11101001110001…
…10010011001001
3122002020220202020
432213012103021
51000223133231
640153555053
76034401003
oct1647062311
9562226666
10245130441
11116408146
126a115a89
133ba290ca
14247ad373
15167c1396
hexe9c64c9

245130441 has 4 divisors (see below), whose sum is σ = 326840592. Its totient is φ = 163420292.

The previous prime is 245130409. The next prime is 245130451. The reversal of 245130441 is 144031542.

245130441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245130441 - 25 = 245130409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245130451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40855071 + ... + 40855076.

It is an arithmetic number, because the mean of its divisors is an integer number (81710148).

Almost surely, 2245130441 is an apocalyptic number.

It is an amenable number.

245130441 is a deficient number, since it is larger than the sum of its proper divisors (81710151).

245130441 is an equidigital number, since it uses as much as digits as its factorization.

245130441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81710150.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 245130441 is about 15656.6420729351. The cubic root of 245130441 is about 625.8435040759.

Adding to 245130441 its reverse (144031542), we get a palindrome (389161983).

The spelling of 245130441 in words is "two hundred forty-five million, one hundred thirty thousand, four hundred forty-one".

Divisors: 1 3 81710147 245130441