Base | Representation |
---|---|
bin | 10010101010011111… |
… | …01110111001010101 |
3 | 221212022121221120221 |
4 | 21111033232321111 |
5 | 131010122402242 |
6 | 4334141554341 |
7 | 503210430151 |
oct | 112517567125 |
9 | 27768557527 |
10 | 10020122197 |
11 | 4282109128 |
12 | 1b378759b1 |
13 | c38c143b7 |
14 | 6b0ac0061 |
15 | 3d9a35167 |
hex | 2553eee55 |
10020122197 has 2 divisors, whose sum is σ = 10020122198. Its totient is φ = 10020122196.
The previous prime is 10020122191. The next prime is 10020122209. The reversal of 10020122197 is 79122102001.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8542565476 + 1477556721 = 92426^2 + 38439^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10020122197 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10020122191) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010061098 + 5010061099.
It is an arithmetic number, because the mean of its divisors is an integer number (5010061099).
Almost surely, 210020122197 is an apocalyptic number.
It is an amenable number.
10020122197 is a deficient number, since it is larger than the sum of its proper divisors (1).
10020122197 is an equidigital number, since it uses as much as digits as its factorization.
10020122197 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 504, while the sum is 25.
Adding to 10020122197 its reverse (79122102001), we get a palindrome (89142224198).
The spelling of 10020122197 in words is "ten billion, twenty million, one hundred twenty-two thousand, one hundred ninety-seven".
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