Base | Representation |
---|---|
bin | 100100000100010… |
… | …0011000010001001 |
3 | 10010100012112120200 |
4 | 1020020203002021 |
5 | 4434302401301 |
6 | 320030442413 |
7 | 41663350320 |
oct | 11010430211 |
9 | 3110175520 |
10 | 1210200201 |
11 | 571143361 |
12 | 299363409 |
13 | 1639561c2 |
14 | b6a270b7 |
15 | 713a2c86 |
hex | 48223089 |
1210200201 has 24 divisors (see below), whose sum is σ = 2011214400. Its totient is φ = 686896416.
The previous prime is 1210200169. The next prime is 1210200203. The reversal of 1210200201 is 1020020121.
It is not a de Polignac number, because 1210200201 - 25 = 1210200169 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (1210200203) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55075 + ... + 73848.
It is an arithmetic number, because the mean of its divisors is an integer number (83800600).
Almost surely, 21210200201 is an apocalyptic number.
It is an amenable number.
1210200201 is a deficient number, since it is larger than the sum of its proper divisors (801014199).
1210200201 is a wasteful number, since it uses less digits than its factorization.
1210200201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 129085 (or 129082 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 1210200201 is about 34787.9318298746. The cubic root of 1210200201 is about 1065.6610033971.
Adding to 1210200201 its reverse (1020020121), we get a palindrome (2230220322).
The spelling of 1210200201 in words is "one billion, two hundred ten million, two hundred thousand, two hundred one".
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