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10509289 = 74433389
BaseRepresentation
bin101000000101…
…101111101001
3201202221000221
4220011233221
510142244124
61013130041
7155220220
oct50055751
921687027
1010509289
115a2886a
123629921
13223c61b
141577cb7
15dc8ce4
hexa05be9

10509289 has 8 divisors (see below), whose sum is σ = 12041280. Its totient is φ = 8984976.

The previous prime is 10509283. The next prime is 10509293. The reversal of 10509289 is 98290501.

10509289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10509289 - 221 = 8412137 is a prime.

It is a super-2 number, since 2×105092892 = 220890310571042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10509283) 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, 1407 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (1505160).

Almost surely, 210509289 is an apocalyptic number.

It is an amenable number.

10509289 is a deficient number, since it is larger than the sum of its proper divisors (1531991).

10509289 is an equidigital number, since it uses as much as digits as its factorization.

10509289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 10509289 is about 3241.8033561584. The cubic root of 10509289 is about 219.0405115384.

The spelling of 10509289 in words is "ten million, five hundred nine thousand, two hundred eighty-nine".

Divisors: 1 7 443 3101 3389 23723 1501327 10509289