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1066025 = 5242641
BaseRepresentation
bin100000100010000101001
32000011022102
410010100221
5233103100
634503145
712026642
oct4042051
92004272
101066025
11668a14
12434ab5
132b42ac
141da6c9
15160cd5
hex104429

1066025 has 6 divisors (see below), whose sum is σ = 1321902. Its totient is φ = 852800.

The previous prime is 1066001. The next prime is 1066031. The reversal of 1066025 is 5206601.

It can be written as a sum of positive squares in 3 ways, for example, as 107584 + 958441 = 328^2 + 979^2 .

It is not a de Polignac number, because 1066025 - 220 = 17449 is a prime.

It is a super-2 number, since 2×10660252 = 2272818601250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1065988 and 1066006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21296 + ... + 21345.

It is an arithmetic number, because the mean of its divisors is an integer number (220317).

21066025 is an apocalyptic number.

It is an amenable number.

1066025 is a deficient number, since it is larger than the sum of its proper divisors (255877).

1066025 is an equidigital number, since it uses as much as digits as its factorization.

1066025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42651 (or 42646 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1066025 is about 1032.4848667172. The cubic root of 1066025 is about 102.1540987420.

The spelling of 1066025 in words is "one million, sixty-six thousand, twenty-five".

Divisors: 1 5 25 42641 213205 1066025