Base | Representation |
---|---|
bin | 10010101000101100… |
… | …100001010000111101 |
3 | 1220122112120000101112 |
4 | 102220230201100331 |
5 | 311440042041221 |
6 | 13105330051405 |
7 | 1305604101062 |
oct | 225054412075 |
9 | 56575500345 |
10 | 20010112061 |
11 | 85392063a5 |
12 | 3a65419b65 |
13 | 1b6b8084c4 |
14 | d7b798c69 |
15 | 7c1ab715b |
hex | 4a8b2143d |
20010112061 has 2 divisors, whose sum is σ = 20010112062. Its totient is φ = 20010112060.
The previous prime is 20010112037. The next prime is 20010112093. The reversal of 20010112061 is 16021101002.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 13570852036 + 6439260025 = 116494^2 + 80245^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20010112061 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20010112261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005056030 + 10005056031.
It is an arithmetic number, because the mean of its divisors is an integer number (10005056031).
Almost surely, 220010112061 is an apocalyptic number.
It is an amenable number.
20010112061 is a deficient number, since it is larger than the sum of its proper divisors (1).
20010112061 is an equidigital number, since it uses as much as digits as its factorization.
20010112061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 24, while the sum is 14.
Adding to 20010112061 its reverse (16021101002), we get a palindrome (36031213063).
The spelling of 20010112061 in words is "twenty billion, ten million, one hundred twelve thousand, sixty-one".
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