Search a number
4431025 = 524212
BaseRepresentation
bin10000111001110010110001
322100010020001
4100321302301
52113243100
6234550001
752443304
oct20716261
98303201
104431025
112557105
121598301
13bc1b11
14834b3b
155c7d6a
hex439cb1

4431025 has 9 divisors (see below), whose sum is σ = 5507553. Its totient is φ = 3536400.

The previous prime is 4431023. The next prime is 4431029. The reversal of 4431025 is 5201344.

Adding to 4431025 its reverse (5201344), we get a palindrome (9632369).

The square root of 4431025 is 2105.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2537649 + 1893376 = 1593^2 + 1376^2 .

It is not a de Polignac number, because 4431025 - 21 = 4431023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4430993 and 4431011.

It is not an unprimeable number, because it can be changed into a prime (4431023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10315 + ... + 10735.

Almost surely, 24431025 is an apocalyptic number.

4431025 is the 2105-th square number.

4431025 is the 1053-rd centered octagonal number.

It is an amenable number.

4431025 is a deficient number, since it is larger than the sum of its proper divisors (1076528).

4431025 is an frugal number, since it uses more digits than its factorization.

4431025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The cubic root of 4431025 is about 164.2484954845.

The spelling of 4431025 in words is "four million, four hundred thirty-one thousand, twenty-five".

Divisors: 1 5 25 421 2105 10525 177241 886205 4431025