Base | Representation |
---|---|
bin | 101110011110… |
… | …110111101110 |
3 | 211221001202220 |
4 | 232132313232 |
5 | 11104410240 |
6 | 1113100210 |
7 | 205366662 |
oct | 56366756 |
9 | 24831686 |
10 | 12185070 |
11 | 6972907 |
12 | 40b7666 |
13 | 26a8301 |
14 | 18928a2 |
15 | 110a5d0 |
hex | b9edee |
12185070 has 16 divisors (see below), whose sum is σ = 29244240. Its totient is φ = 3249344.
The previous prime is 12185059. The next prime is 12185113. The reversal of 12185070 is 7058121.
It is an alternating number because its digits alternate between odd and even.
It is a self number, because there is not a number n which added to its sum of digits gives 12185070.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203055 + ... + 203114.
It is an arithmetic number, because the mean of its divisors is an integer number (1827765).
Almost surely, 212185070 is an apocalyptic number.
12185070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12185070 is an abundant number, since it is smaller than the sum of its proper divisors (17059170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12185070 is a wasteful number, since it uses less digits than its factorization.
12185070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 406179.
The product of its (nonzero) digits is 560, while the sum is 24.
The square root of 12185070 is about 3490.7119617637. The cubic root of 12185070 is about 230.1138063121.
The spelling of 12185070 in words is "twelve million, one hundred eighty-five thousand, seventy".
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