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10122009 = 314872269
BaseRepresentation
bin100110100111…
…001100011001
3201001020210020
4212213030121
510042401014
61000541053
7152015142
oct46471431
921036706
1010122009
1157938a7
123481789
132135271
1414b6ac9
15d4e1a9
hex9a7319

10122009 has 8 divisors (see below), whose sum is σ = 13511040. Its totient is φ = 6740496.

The previous prime is 10121999. The next prime is 10122011. The reversal of 10122009 is 90022101.

It is a happy number.

10122009 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 10122009 - 221 = 8024857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10122209) 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, 3327 + ... + 5595.

It is an arithmetic number, because the mean of its divisors is an integer number (1688880).

Almost surely, 210122009 is an apocalyptic number.

It is an amenable number.

10122009 is a deficient number, since it is larger than the sum of its proper divisors (3389031).

10122009 is a wasteful number, since it uses less digits than its factorization.

10122009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 10122009 is about 3181.5104903175. The cubic root of 10122009 is about 216.3161308878.

The spelling of 10122009 in words is "ten million, one hundred twenty-two thousand, nine".

Divisors: 1 3 1487 2269 4461 6807 3374003 10122009