Base | Representation |
---|---|
bin | 11001000010011… |
… | …00111001111001 |
3 | 112122012122021100 |
4 | 30201030321321 |
5 | 412231431301 |
6 | 32501402013 |
7 | 5130140643 |
oct | 1441147171 |
9 | 478178240 |
10 | 210030201 |
11 | a8613887 |
12 | 5a409309 |
13 | 34689834 |
14 | 1dc73893 |
15 | 1368b286 |
hex | c84ce79 |
210030201 has 6 divisors (see below), whose sum is σ = 303376970. Its totient is φ = 140020128.
The previous prime is 210030113. The next prime is 210030211. The reversal of 210030201 is 102030012.
It is a happy number.
210030201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 127238400 + 82791801 = 11280^2 + 9099^2 .
It is not a de Polignac number, because 210030201 - 221 = 207933049 is a prime.
It is a super-2 number, since 2×2100302012 = 88225370664200802, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 23336689 = 210030201 / (2 + 1 + 0 + 0 + 3 + 0 + 2 + 0 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (210030211) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11668336 + ... + 11668353.
Almost surely, 2210030201 is an apocalyptic number.
It is an amenable number.
210030201 is a deficient number, since it is larger than the sum of its proper divisors (93346769).
210030201 is a wasteful number, since it uses less digits than its factorization.
210030201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23336695 (or 23336692 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 210030201 is about 14492.4187422252. The cubic root of 210030201 is about 594.4206879401.
Adding to 210030201 its reverse (102030012), we get a palindrome (312060213).
The spelling of 210030201 in words is "two hundred ten million, thirty thousand, two hundred one".
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