Base | Representation |
---|---|
bin | 1110010101001… |
… | …11000101001111 |
3 | 22101012220121211 |
4 | 13022213011033 |
5 | 221234101111 |
6 | 15532435251 |
7 | 2656604356 |
oct | 712470517 |
9 | 271186554 |
10 | 120222031 |
11 | 61953656 |
12 | 34318b27 |
13 | 1bba3cc7 |
14 | 11d7699d |
15 | a84b521 |
hex | 72a714f |
120222031 has 2 divisors, whose sum is σ = 120222032. Its totient is φ = 120222030.
The previous prime is 120222013. The next prime is 120222041. The reversal of 120222031 is 130222021.
Together with previous prime (120222013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 120222031 - 213 = 120213839 is a prime.
It is a super-2 number, since 2×1202220312 = 28906673475529922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (120222041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111015 + 60111016.
It is an arithmetic number, because the mean of its divisors is an integer number (60111016).
Almost surely, 2120222031 is an apocalyptic number.
120222031 is a deficient number, since it is larger than the sum of its proper divisors (1).
120222031 is an equidigital number, since it uses as much as digits as its factorization.
120222031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 120222031 is about 10964.5807489388. The cubic root of 120222031 is about 493.5464360667.
Adding to 120222031 its reverse (130222021), we get a palindrome (250444052).
The spelling of 120222031 in words is "one hundred twenty million, two hundred twenty-two thousand, thirty-one".
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