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4072825 = 521011613
BaseRepresentation
bin1111100010010101111001
321122220212101
433202111321
52020312300
6223143401
746422061
oct17422571
97586771
104072825
112331a79
121444b61
13ac7a73
147803a1
15556b6a
hex3e2579

4072825 has 12 divisors (see below), whose sum is σ = 5103468. Its totient is φ = 3224000.

The previous prime is 4072819. The next prime is 4072837. The reversal of 4072825 is 5282704.

It can be written as a sum of positive squares in 6 ways, for example, as 184041 + 3888784 = 429^2 + 1972^2 .

It is not a de Polignac number, because 4072825 - 25 = 4072793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4072793 and 4072802.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1719 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (425289).

Almost surely, 24072825 is an apocalyptic number.

It is an amenable number.

4072825 is a deficient number, since it is larger than the sum of its proper divisors (1030643).

4072825 is a wasteful number, since it uses less digits than its factorization.

4072825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4072825 is about 2018.1241289871. The cubic root of 4072825 is about 159.6976712807.

The spelling of 4072825 in words is "four million, seventy-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 101 505 1613 2525 8065 40325 162913 814565 4072825