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10506005 = 58923609
BaseRepresentation
bin101000000100…
…111100010101
3201202202112022
4220010330111
510142143010
61013102525
7155204516
oct50047425
921682468
1010506005
115a26354
123627a45
13223ac93
141576a0d
15dc7d55
hexa04f15

10506005 has 8 divisors (see below), whose sum is σ = 12749400. Its totient is φ = 8310016.

The previous prime is 10505987. The next prime is 10506007. The reversal of 10506005 is 50060501.

It can be written as a sum of positive squares in 4 ways, for example, as 14884 + 10491121 = 122^2 + 3239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10506005 - 28 = 10505749 is a prime.

It is a super-2 number, since 2×105060052 = 220752282120050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11360 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (1593675).

Almost surely, 210506005 is an apocalyptic number.

It is an amenable number.

10506005 is a deficient number, since it is larger than the sum of its proper divisors (2243395).

10506005 is an equidigital number, since it uses as much as digits as its factorization.

10506005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23703.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 10506005 is about 3241.2968083778. The cubic root of 10506005 is about 219.0176935032.

Adding to 10506005 its reverse (50060501), we get a palindrome (60566506).

The spelling of 10506005 in words is "ten million, five hundred six thousand, five".

Divisors: 1 5 89 445 23609 118045 2101201 10506005