Base | Representation |
---|---|
bin | 1011110100101001101… |
… | …1100011100000011101 |
3 | 201102021020102211121021 |
4 | 2331022123203200131 |
5 | 11311433210401341 |
6 | 233150343204141 |
7 | 20450211134020 |
oct | 2751233434035 |
9 | 642236384537 |
10 | 203112200221 |
11 | 791595a62a7 |
12 | 33445a46651 |
13 | 161cc029378 |
14 | 9b8b5731b7 |
15 | 543b7cc9d1 |
hex | 2f4a6e381d |
203112200221 has 16 divisors (see below), whose sum is σ = 243846432000. Its totient is φ = 165409123968.
The previous prime is 203112200189. The next prime is 203112200237. The reversal of 203112200221 is 122002211302.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 203112200221 - 25 = 203112200189 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 203112200195 and 203112200204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (203112200821) 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, 4209456 + ... + 4257433.
It is an arithmetic number, because the mean of its divisors is an integer number (15240402000).
Almost surely, 2203112200221 is an apocalyptic number.
It is an amenable number.
203112200221 is a deficient number, since it is larger than the sum of its proper divisors (40734231779).
203112200221 is a wasteful number, since it uses less digits than its factorization.
203112200221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8467068.
The product of its (nonzero) digits is 96, while the sum is 16.
Adding to 203112200221 its reverse (122002211302), we get a palindrome (325114411523).
The spelling of 203112200221 in words is "two hundred three billion, one hundred twelve million, two hundred thousand, two hundred twenty-one".
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