Base | Representation |
---|---|
bin | 110101110110110… |
… | …0010100011010101 |
3 | 11122221101012022222 |
4 | 1223231202203111 |
5 | 12200104200432 |
6 | 455152232125 |
7 | 62532045314 |
oct | 15355424325 |
9 | 4587335288 |
10 | 1807100117 |
11 | 848074079 |
12 | 42523b645 |
13 | 22a507a14 |
14 | 13200427b |
15 | a89ac112 |
hex | 6bb628d5 |
1807100117 has 2 divisors, whose sum is σ = 1807100118. Its totient is φ = 1807100116.
The previous prime is 1807100063. The next prime is 1807100123. The reversal of 1807100117 is 7110017081.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1179647716 + 627452401 = 34346^2 + 25049^2 .
It is a cyclic number.
It is not a de Polignac number, because 1807100117 - 224 = 1790322901 is a prime.
It is a super-2 number, since 2×18071001172 = 6531221665722827378, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1807100717) 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, 903550058 + 903550059.
It is an arithmetic number, because the mean of its divisors is an integer number (903550059).
Almost surely, 21807100117 is an apocalyptic number.
It is an amenable number.
1807100117 is a deficient number, since it is larger than the sum of its proper divisors (1).
1807100117 is an equidigital number, since it uses as much as digits as its factorization.
1807100117 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 392, while the sum is 26.
The square root of 1807100117 is about 42510.0001999530. Note that the first 3 decimals coincide. The cubic root of 1807100117 is about 1218.0377209493.
Adding to 1807100117 its reverse (7110017081), we get a palindrome (8917117198).
The spelling of 1807100117 in words is "one billion, eight hundred seven million, one hundred thousand, one hundred seventeen".
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