Base | Representation |
---|---|
bin | 100111001000010100100 |
3 | 2102010212100 |
4 | 10321002210 |
5 | 312012322 |
6 | 43252100 |
7 | 13620141 |
oct | 4710244 |
9 | 2363770 |
10 | 1282212 |
11 | 7a6388 |
12 | 51a030 |
13 | 35b809 |
14 | 2553c8 |
15 | 1a4dac |
hex | 1390a4 |
1282212 has 18 divisors (see below), whose sum is σ = 3241238. Its totient is φ = 427392.
The previous prime is 1282201. The next prime is 1282213. The reversal of 1282212 is 2122821.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 1028196 + 254016 = 1014^2 + 504^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is a super-2 number, since 2×12822122 = 3288135225888, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (1282213) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17773 + ... + 17844.
21282212 is an apocalyptic number.
1282212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1282212 is an abundant number, since it is smaller than the sum of its proper divisors (1959026).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1282212 is a wasteful number, since it uses less digits than its factorization.
1282212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35627 (or 35622 counting only the distinct ones).
The product of its digits is 128, while the sum is 18.
The square root of 1282212 is about 1132.3480030450. The cubic root of 1282212 is about 108.6392133759.
The spelling of 1282212 in words is "one million, two hundred eighty-two thousand, two hundred twelve".
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