Base | Representation |
---|---|
bin | 101111100101110011… |
… | …0110101001111101101 |
3 | 100202210111201012021212 |
4 | 1133023212311033231 |
5 | 3133301222432341 |
6 | 114541121004205 |
7 | 10245421246145 |
oct | 1371346651755 |
9 | 322714635255 |
10 | 102200202221 |
11 | 3a385393647 |
12 | 17982783665 |
13 | 98395b2150 |
14 | 4d37351925 |
15 | 29d24965eb |
hex | 17cb9b53ed |
102200202221 has 8 divisors (see below), whose sum is σ = 110065005624. Its totient is φ = 94335863040.
The previous prime is 102200202191. The next prime is 102200202229. The reversal of 102200202221 is 122202002201.
It can be written as a sum of positive squares in 4 ways, for example, as 605652100 + 101594550121 = 24610^2 + 318739^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 102200202221 - 230 = 101126460397 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 102200202196 and 102200202205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102200202229) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439841 + ... + 630761.
It is an arithmetic number, because the mean of its divisors is an integer number (13758125703).
Almost surely, 2102200202221 is an apocalyptic number.
It is an amenable number.
102200202221 is a deficient number, since it is larger than the sum of its proper divisors (7864803403).
102200202221 is a wasteful number, since it uses less digits than its factorization.
102200202221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232111.
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 102200202221 its reverse (122202002201), we get a palindrome (224402204422).
The spelling of 102200202221 in words is "one hundred two billion, two hundred million, two hundred two thousand, two hundred twenty-one".
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