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1010005 = 5202001
BaseRepresentation
bin11110110100101010101
31220022110121
43312211111
5224310010
633351541
711404423
oct3664525
91808417
101010005
1162a917
124085b1
13294949
141c4113
1514e3da
hexf6955

1010005 has 4 divisors (see below), whose sum is σ = 1212012. Its totient is φ = 808000.

The previous prime is 1010003. The next prime is 1010033. The reversal of 1010005 is 5000101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770884 + 239121 = 878^2 + 489^2 .

It is not a de Polignac number, because 1010005 - 21 = 1010003 is a prime.

It is a super-2 number, since 2×10100052 = 2040220200050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100996 + ... + 101005.

It is an arithmetic number, because the mean of its divisors is an integer number (303003).

21010005 is an apocalyptic number.

It is an amenable number.

1010005 is a deficient number, since it is larger than the sum of its proper divisors (202007).

1010005 is an equidigital number, since it uses as much as digits as its factorization.

1010005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202006.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 1010005 is about 1004.9900497020. The cubic root of 1010005 is about 100.3323939187.

Adding to 1010005 its reverse (5000101), we get a palindrome (6010106).

The spelling of 1010005 in words is "one million, ten thousand, five".

Divisors: 1 5 202001 1010005