Base | Representation |
---|---|
bin | 101110000010… |
… | …100100010010 |
3 | 211201011202010 |
4 | 232002210102 |
5 | 11042203023 |
6 | 1110403350 |
7 | 204404664 |
oct | 56024422 |
9 | 24634663 |
10 | 12069138 |
11 | 68a37a4 |
12 | 4060556 |
13 | 2667603 |
14 | 1862534 |
15 | 10d6093 |
hex | b82912 |
12069138 has 16 divisors (see below), whose sum is σ = 24183360. Its totient is φ = 4015536.
The previous prime is 12069119. The next prime is 12069139. The reversal of 12069138 is 83196021.
It is not an unprimeable number, because it can be changed into a prime (12069139) 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, 2328 + ... + 5436.
It is an arithmetic number, because the mean of its divisors is an integer number (1511460).
Almost surely, 212069138 is an apocalyptic number.
12069138 is an abundant number, since it is smaller than the sum of its proper divisors (12114222).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12069138 is a wasteful number, since it uses less digits than its factorization.
12069138 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3761.
The product of its (nonzero) digits is 2592, while the sum is 30.
The square root of 12069138 is about 3474.0664933187. The cubic root of 12069138 is about 229.3816915292.
The spelling of 12069138 in words is "twelve million, sixty-nine thousand, one hundred thirty-eight".
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