Base | Representation |
---|---|
bin | 100101000011100010111 |
3 | 2021200121112 |
4 | 10220130113 |
5 | 302323411 |
6 | 42005235 |
7 | 13215014 |
oct | 4503427 |
9 | 2250545 |
10 | 1214231 |
11 | 75a2a7 |
12 | 4a681b |
13 | 3368a5 |
14 | 23870b |
15 | 18eb8b |
hex | 128717 |
1214231 has 4 divisors (see below), whose sum is σ = 1223232. Its totient is φ = 1205232.
The previous prime is 1214221. The next prime is 1214237. The reversal of 1214231 is 1324121.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1324121 = 67 ⋅19763.
It is a cyclic number.
It is not a de Polignac number, because 1214231 - 26 = 1214167 is a prime.
It is a super-2 number, since 2×12142312 = 2948713842722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1214237) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295 + ... + 4568.
It is an arithmetic number, because the mean of its divisors is an integer number (305808).
21214231 is an apocalyptic number.
1214231 is a deficient number, since it is larger than the sum of its proper divisors (9001).
1214231 is an equidigital number, since it uses as much as digits as its factorization.
1214231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9000.
The product of its digits is 48, while the sum is 14.
The square root of 1214231 is about 1101.9215035564. The cubic root of 1214231 is about 106.6842820300.
Adding to 1214231 its reverse (1324121), we get a palindrome (2538352).
The spelling of 1214231 in words is "one million, two hundred fourteen thousand, two hundred thirty-one".
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