Base | Representation |
---|---|
bin | 101110001111… |
… | …101110000010 |
3 | 211210220122101 |
4 | 232033232002 |
5 | 11100414020 |
6 | 1111501014 |
7 | 205021024 |
oct | 56175602 |
9 | 24726571 |
10 | 12123010 |
11 | 6930219 |
12 | 408776a |
13 | 2685ca3 |
14 | 1878014 |
15 | 10e700a |
hex | b8fb82 |
12123010 has 8 divisors (see below), whose sum is σ = 21821436. Its totient is φ = 4849200.
The previous prime is 12122987. The next prime is 12123017. The reversal of 12123010 is 1032121.
It can be written as a sum of positive squares in 2 ways, for example, as 10975969 + 1147041 = 3313^2 + 1071^2 .
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: 1212301 = 12123010 / (1 + 2 + 1 + 2 + 3 + 0 + 1 + 0).
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (12123017) 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, 606141 + ... + 606160.
Almost surely, 212123010 is an apocalyptic number.
12123010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12123010 is a deficient number, since it is larger than the sum of its proper divisors (9698426).
12123010 is a wasteful number, since it uses less digits than its factorization.
12123010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1212308.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 12123010 is about 3481.8113102235. The cubic root of 12123010 is about 229.7224756000.
Adding to 12123010 its reverse (1032121), we get a palindrome (13155131).
The spelling of 12123010 in words is "twelve million, one hundred twenty-three thousand, ten".
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