Base | Representation |
---|---|
bin | 100101000111001011101 |
3 | 2021210011111 |
4 | 10220321131 |
5 | 302403333 |
6 | 42022021 |
7 | 13223314 |
oct | 4507135 |
9 | 2253144 |
10 | 1216093 |
11 | 76073a |
12 | 4a7911 |
13 | 3376a8 |
14 | 23927b |
15 | 1904cd |
hex | 128e5d |
1216093 has 4 divisors (see below), whose sum is σ = 1222588. Its totient is φ = 1209600.
The previous prime is 1216091. The next prime is 1216109. The reversal of 1216093 is 3906121.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3906121 = 89 ⋅43889.
It can be written as a sum of positive squares in 2 ways, for example, as 515524 + 700569 = 718^2 + 837^2 .
It is a cyclic number.
It is not a de Polignac number, because 1216093 - 21 = 1216091 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1216091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958 + ... + 3343.
It is an arithmetic number, because the mean of its divisors is an integer number (305647).
21216093 is an apocalyptic number.
It is an amenable number.
1216093 is a deficient number, since it is larger than the sum of its proper divisors (6495).
1216093 is an equidigital number, since it uses as much as digits as its factorization.
1216093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6494.
The product of its (nonzero) digits is 324, while the sum is 22.
The square root of 1216093 is about 1102.7660676680. The cubic root of 1216093 is about 106.7387869470.
The spelling of 1216093 in words is "one million, two hundred sixteen thousand, ninety-three".
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