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12110009 = 109241461
BaseRepresentation
bin101110001100…
…100010111001
3211210020210212
4232030202321
511100010014
61111320505
7204635102
oct56144271
924706725
1012110009
11692147a
124080135
1326800b2
1418733a9
1510e323e
hexb8c8b9

12110009 has 8 divisors (see below), whose sum is σ = 12298440. Its totient is φ = 11923200.

The previous prime is 12110003. The next prime is 12110017. The reversal of 12110009 is 90001121.

12110009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3139984 + 8970025 = 1772^2 + 2995^2 .

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 12110009 - 220 = 11061433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12109975 and 12110002.

It is not an unprimeable number, because it can be changed into a prime (12110003) 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, 26039 + ... + 26499.

It is an arithmetic number, because the mean of its divisors is an integer number (1537305).

Almost surely, 212110009 is an apocalyptic number.

It is an amenable number.

12110009 is a deficient number, since it is larger than the sum of its proper divisors (188431).

12110009 is a wasteful number, since it uses less digits than its factorization.

12110009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 12110009 is about 3479.9438213856. The cubic root of 12110009 is about 229.6403263048.

The spelling of 12110009 in words is "twelve million, one hundred ten thousand, nine".

Divisors: 1 109 241 461 26269 50249 111101 12110009