Base | Representation |
---|---|
bin | 101110001010… |
… | …011001101110 |
3 | 211202210202201 |
4 | 232022121232 |
5 | 11044214410 |
6 | 1111212114 |
7 | 204600361 |
oct | 56123156 |
9 | 24683681 |
10 | 12101230 |
11 | 6915919 |
12 | 407703a |
13 | 26790bb |
14 | 18700d8 |
15 | 10e083a |
hex | b8a66e |
12101230 has 8 divisors (see below), whose sum is σ = 21782232. Its totient is φ = 4840488.
The previous prime is 12101227. The next prime is 12101237. The reversal of 12101230 is 3210121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1210123 = 12101230 / (1 + 2 + 1 + 0 + 1 + 2 + 3 + 0).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12101237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605052 + ... + 605071.
It is an arithmetic number, because the mean of its divisors is an integer number (2722779).
Almost surely, 212101230 is an apocalyptic number.
12101230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12101230 is a deficient number, since it is larger than the sum of its proper divisors (9681002).
12101230 is a wasteful number, since it uses less digits than its factorization.
12101230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1210130.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 12101230 is about 3478.6822217616. The cubic root of 12101230 is about 229.5848212598.
Adding to 12101230 its reverse (3210121), we get a palindrome (15311351).
The spelling of 12101230 in words is "twelve million, one hundred one thousand, two hundred thirty".
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