Base | Representation |
---|---|
bin | 111100010101010… |
… | …100101101010111 |
3 | 2121112200020122121 |
4 | 330111110231113 |
5 | 4033112112212 |
6 | 244235240411 |
7 | 34040515621 |
oct | 7425245527 |
9 | 2545606577 |
10 | 1012222807 |
11 | 47a411a82 |
12 | 242ba9107 |
13 | 13192970b |
14 | 9860dc11 |
15 | 5dce7d07 |
hex | 3c554b57 |
1012222807 has 2 divisors, whose sum is σ = 1012222808. Its totient is φ = 1012222806.
The previous prime is 1012222787. The next prime is 1012222811. The reversal of 1012222807 is 7082222101.
It is a strong prime.
It is an emirp because it is prime and its reverse (7082222101) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1012222807 - 223 = 1003834199 is a prime.
It is a super-2 number, since 2×10122228072 = 2049190022021918498, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1012222877) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506111403 + 506111404.
It is an arithmetic number, because the mean of its divisors is an integer number (506111404).
Almost surely, 21012222807 is an apocalyptic number.
1012222807 is a deficient number, since it is larger than the sum of its proper divisors (1).
1012222807 is an equidigital number, since it uses as much as digits as its factorization.
1012222807 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 896, while the sum is 25.
The square root of 1012222807 is about 31815.4491874624. The cubic root of 1012222807 is about 1004.0577811410.
Adding to 1012222807 its reverse (7082222101), we get a palindrome (8094444908).
The spelling of 1012222807 in words is "one billion, twelve million, two hundred twenty-two thousand, eight hundred seven".
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