Base | Representation |
---|---|
bin | 1000010001011111100001 |
3 | 11002012000222 |
4 | 20101133201 |
5 | 1023400201 |
6 | 114252425 |
7 | 24302015 |
oct | 10213741 |
9 | 4065028 |
10 | 2168801 |
11 | 12514a8 |
12 | 887115 |
13 | 5ac21b |
14 | 406545 |
15 | 2cc91b |
hex | 2117e1 |
2168801 has 2 divisors, whose sum is σ = 2168802. Its totient is φ = 2168800.
The previous prime is 2168797. The next prime is 2168807. The reversal of 2168801 is 1088612.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1957201 + 211600 = 1399^2 + 460^2 .
It is a cyclic number.
It is not a de Polignac number, because 2168801 - 22 = 2168797 is a prime.
It is a super-3 number, since 3×21688013 = 30604153331276479203, which contains 333 as substring.
It is an Ulam number.
It is not a weakly prime, because it can be changed into another prime (2168807) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084400 + 1084401.
It is an arithmetic number, because the mean of its divisors is an integer number (1084401).
22168801 is an apocalyptic number.
It is an amenable number.
2168801 is a deficient number, since it is larger than the sum of its proper divisors (1).
2168801 is an equidigital number, since it uses as much as digits as its factorization.
2168801 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 768, while the sum is 26.
The square root of 2168801 is about 1472.6849629164. The cubic root of 2168801 is about 129.4414099683.
The spelling of 2168801 in words is "two million, one hundred sixty-eight thousand, eight hundred one".
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