Base | Representation |
---|---|
bin | 1101011000001… |
… | …01111101001111 |
3 | 21211011110200112 |
4 | 12230011331033 |
5 | 212212101111 |
6 | 15045150235 |
7 | 2531604635 |
oct | 654057517 |
9 | 254143615 |
10 | 112222031 |
11 | 5838a089 |
12 | 316bb37b |
13 | 1a33288c |
14 | 10c93355 |
15 | 9cbae8b |
hex | 6b05f4f |
112222031 has 2 divisors, whose sum is σ = 112222032. Its totient is φ = 112222030.
The previous prime is 112222013. The next prime is 112222063. The reversal of 112222031 is 130222211.
It is a happy number.
Together with previous prime (112222013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-112222031 is a prime.
It is a super-2 number, since 2×1122220312 = 25187568483529922, which contains 22 as substring.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 112221997 and 112222015.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (112222001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56111015 + 56111016.
It is an arithmetic number, because the mean of its divisors is an integer number (56111016).
Almost surely, 2112222031 is an apocalyptic number.
112222031 is a deficient number, since it is larger than the sum of its proper divisors (1).
112222031 is an equidigital number, since it uses as much as digits as its factorization.
112222031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 112222031 is about 10593.4900292585. The cubic root of 112222031 is about 482.3467701392.
Adding to 112222031 its reverse (130222211), we get a palindrome (242444242).
The spelling of 112222031 in words is "one hundred twelve million, two hundred twenty-two thousand, thirty-one".
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