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4291025 = 52171641
BaseRepresentation
bin10000010111100111010001
322002000011212
4100113213101
52044303100
6231545505
751321164
oct20274721
98060155
104291025
112470a02
12152b295
13b7318b
147d9adb
1559b635
hex4179d1

4291025 has 6 divisors (see below), whose sum is σ = 5320902. Its totient is φ = 3432800.

The previous prime is 4290997. The next prime is 4291031. The reversal of 4291025 is 5201924.

It can be written as a sum of positive squares in 3 ways, for example, as 96721 + 4194304 = 311^2 + 2048^2 .

It is not a de Polignac number, because 4291025 - 26 = 4290961 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 85796 + ... + 85845.

It is an arithmetic number, because the mean of its divisors is an integer number (886817).

Almost surely, 24291025 is an apocalyptic number.

It is an amenable number.

4291025 is a deficient number, since it is larger than the sum of its proper divisors (1029877).

4291025 is a wasteful number, since it uses less digits than its factorization.

4291025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171651 (or 171646 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4291025 is about 2071.4789402743. The cubic root of 4291025 is about 162.5001183431.

Adding to 4291025 its reverse (5201924), we get a palindrome (9492949).

The spelling of 4291025 in words is "four million, two hundred ninety-one thousand, twenty-five".

Divisors: 1 5 25 171641 858205 4291025