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4182025 = 524092
BaseRepresentation
bin1111111101000000001001
321212110122211
433331000021
52032311100
6225345121
750355331
oct17750011
97773584
104182025
1123a7021
1214981a1
13b35693
147ac0c1
155791ba
hex3fd009

4182025 has 9 divisors (see below), whose sum is σ = 5198421. Its totient is φ = 3337440.

The previous prime is 4182019. The next prime is 4182037. The reversal of 4182025 is 5202814.

The square root of 4182025 is 2045.

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

4182025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 480249 + 3701776 = 693^2 + 1924^2 .

It is not a de Polignac number, because 4182025 - 27 = 4181897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4181987 and 4182005.

It is an unprimeable number.

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, 10021 + ... + 10429.

Almost surely, 24182025 is an apocalyptic number.

4182025 is the 2045-th square number.

4182025 is the 1023-rd centered octagonal number.

It is an amenable number.

4182025 is a deficient number, since it is larger than the sum of its proper divisors (1016396).

4182025 is an frugal number, since it uses more digits than its factorization.

4182025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The cubic root of 4182025 is about 161.1123657805.

Adding to 4182025 its reverse (5202814), we get a palindrome (9384839).

The spelling of 4182025 in words is "four million, one hundred eighty-two thousand, twenty-five".

Divisors: 1 5 25 409 2045 10225 167281 836405 4182025