Base | Representation |
---|---|
bin | 10011000010010101… |
… | …01010111111111101 |
3 | 222101020221222220002 |
4 | 21201022222333331 |
5 | 131412322401414 |
6 | 4410044404045 |
7 | 511156414241 |
oct | 114112527775 |
9 | 28336858802 |
10 | 10220122109 |
11 | 4374aa100a |
12 | 1b92846625 |
13 | c6b49b642 |
14 | 6cd4a2421 |
15 | 3ec38e4de |
hex | 2612aaffd |
10220122109 has 2 divisors, whose sum is σ = 10220122110. Its totient is φ = 10220122108.
The previous prime is 10220122091. The next prime is 10220122147. The reversal of 10220122109 is 90122102201.
It is a happy number.
Together with previous prime (10220122091) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6738768100 + 3481354009 = 82090^2 + 59003^2 .
It is a cyclic number.
It is not a de Polignac number, because 10220122109 - 220 = 10219073533 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10220122009) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110061054 + 5110061055.
It is an arithmetic number, because the mean of its divisors is an integer number (5110061055).
Almost surely, 210220122109 is an apocalyptic number.
It is an amenable number.
10220122109 is a deficient number, since it is larger than the sum of its proper divisors (1).
10220122109 is an equidigital number, since it uses as much as digits as its factorization.
10220122109 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 144, while the sum is 20.
The spelling of 10220122109 in words is "ten billion, two hundred twenty million, one hundred twenty-two thousand, one hundred nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •