Base | Representation |
---|---|
bin | 10111111111001… |
… | …00010100010001 |
3 | 112000121200121210 |
4 | 23333210110101 |
5 | 403002310301 |
6 | 31544410333 |
7 | 4662166260 |
oct | 1377442421 |
9 | 460550553 |
10 | 201213201 |
11 | a3641502 |
12 | 574769a9 |
13 | 328c0587 |
14 | 1ca1a5d7 |
15 | 129e8ad6 |
hex | bfe4511 |
201213201 has 16 divisors (see below), whose sum is σ = 307085184. Its totient is φ = 114801024.
The previous prime is 201213193. The next prime is 201213209. The reversal of 201213201 is 102312102.
It is an interprime number because it is at equal distance from previous prime (201213193) and next prime (201213209).
It is not a de Polignac number, because 201213201 - 23 = 201213193 is a prime.
It is not an unprimeable number, because it can be changed into a prime (201213209) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7141 + ... + 21293.
It is an arithmetic number, because the mean of its divisors is an integer number (19192824).
Almost surely, 2201213201 is an apocalyptic number.
201213201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
201213201 is a deficient number, since it is larger than the sum of its proper divisors (105871983).
201213201 is a wasteful number, since it uses less digits than its factorization.
201213201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14840.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 201213201 is about 14184.9639054881. The cubic root of 201213201 is about 585.9836384518.
Adding to 201213201 its reverse (102312102), we get a palindrome (303525303).
The spelling of 201213201 in words is "two hundred one million, two hundred thirteen thousand, two hundred one".
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