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10297009 = 82912421
BaseRepresentation
bin100111010001…
…111010110001
3201101010211201
4213101322301
510114001014
61004411201
7153344302
oct47217261
921333751
1010297009
1158a3328
123546b01
132196b08
1415207a9
15d85e74
hex9d1eb1

10297009 has 4 divisors (see below), whose sum is σ = 10310260. Its totient is φ = 10283760.

The previous prime is 10296997. The next prime is 10297043. The reversal of 10297009 is 90079201.

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 8392609 + 1904400 = 2897^2 + 1380^2 .

It is a cyclic number.

It is not a de Polignac number, because 10297009 - 29 = 10296497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10297099) 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 3 ways as a sum of consecutive naturals, for example, 5382 + ... + 7039.

It is an arithmetic number, because the mean of its divisors is an integer number (2577565).

Almost surely, 210297009 is an apocalyptic number.

It is an amenable number.

10297009 is a deficient number, since it is larger than the sum of its proper divisors (13251).

10297009 is an equidigital number, since it uses as much as digits as its factorization.

10297009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 10297009 is about 3208.8952927760. The cubic root of 10297009 is about 217.5556487721. Note that the first 3 decimals are identical.

The spelling of 10297009 in words is "ten million, two hundred ninety-seven thousand, nine".

Divisors: 1 829 12421 10297009