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1027025 = 5241081
BaseRepresentation
bin11111010101111010001
31221011210222
43322233101
5230331100
634002425
711505146
oct3725721
91834728
101027025
1164168a
12416415
1329c60c
141ca3cd
15154485
hexfabd1

1027025 has 6 divisors (see below), whose sum is σ = 1273542. Its totient is φ = 821600.

The previous prime is 1027003. The next prime is 1027027. The reversal of 1027025 is 5207201.

1027025 = 782 + 792 + ... + 1522.

It can be written as a sum of positive squares in 3 ways, for example, as 44944 + 982081 = 212^2 + 991^2 .

It is not a de Polignac number, because 1027025 - 212 = 1022929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1026994 and 1027012.

It is not an unprimeable number, because it can be changed into a prime (1027027) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 20516 + ... + 20565.

It is an arithmetic number, because the mean of its divisors is an integer number (212257).

21027025 is an apocalyptic number.

It is an amenable number.

1027025 is a deficient number, since it is larger than the sum of its proper divisors (246517).

1027025 is an equidigital number, since it uses as much as digits as its factorization.

1027025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41091 (or 41086 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1027025 is about 1013.4224193297. The cubic root of 1027025 is about 100.8928380117.

The spelling of 1027025 in words is "one million, twenty-seven thousand, twenty-five".

Divisors: 1 5 25 41081 205405 1027025