Base | Representation |
---|---|
bin | 100101000011010111111 |
3 | 2021200111021 |
4 | 10220122333 |
5 | 302323033 |
6 | 42005011 |
7 | 13214530 |
oct | 4503277 |
9 | 2250437 |
10 | 1214143 |
11 | 75a227 |
12 | 4a6767 |
13 | 336838 |
14 | 238687 |
15 | 18eb2d |
hex | 1286bf |
1214143 has 8 divisors (see below), whose sum is σ = 1435680. Its totient is φ = 1004640.
The previous prime is 1214141. The next prime is 1214159. The reversal of 1214143 is 3414121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1214143 - 21 = 1214141 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
1214143 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1214141) 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, 2788 + ... + 3193.
It is an arithmetic number, because the mean of its divisors is an integer number (179460).
21214143 is an apocalyptic number.
1214143 is a deficient number, since it is larger than the sum of its proper divisors (221537).
1214143 is an equidigital number, since it uses as much as digits as its factorization.
1214143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6017.
The product of its digits is 96, while the sum is 16.
The square root of 1214143 is about 1101.8815725839. The cubic root of 1214143 is about 106.6817046941.
Adding to 1214143 its reverse (3414121), we get a palindrome (4628264).
The spelling of 1214143 in words is "one million, two hundred fourteen thousand, one hundred forty-three".
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