Base | Representation |
---|---|
bin | 1100111000011101001… |
… | …0101000100111011010 |
3 | 210011020200201102211210 |
4 | 3032013102220213122 |
5 | 12111222131004320 |
6 | 245400404403550 |
7 | 21663226442640 |
oct | 3160722504732 |
9 | 704220642753 |
10 | 221313141210 |
11 | 85949553697 |
12 | 36a853a65b6 |
13 | 17b3ca83335 |
14 | a9d6949190 |
15 | 5b546290e0 |
hex | 33874a89da |
221313141210 has 64 divisors (see below), whose sum is σ = 617319014400. Its totient is φ = 49728470592.
The previous prime is 221313141187. The next prime is 221313141211. The reversal of 221313141210 is 12141313122.
221313141210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (221313141211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8918730 + ... + 8943509.
It is an arithmetic number, because the mean of its divisors is an integer number (9645609600).
Almost surely, 2221313141210 is an apocalyptic number.
221313141210 is an abundant number, since it is smaller than the sum of its proper divisors (396005873190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
221313141210 is a wasteful number, since it uses less digits than its factorization.
221313141210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17862315.
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 221313141210 its reverse (12141313122), we get a palindrome (233454454332).
The spelling of 221313141210 in words is "two hundred twenty-one billion, three hundred thirteen million, one hundred forty-one thousand, two hundred ten".
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