Base | Representation |
---|---|
bin | 100100010111001… |
… | …1011010100110001 |
3 | 10011000220000211121 |
4 | 1020232123110301 |
5 | 4444323130342 |
6 | 321023342241 |
7 | 42143635414 |
oct | 11056332461 |
9 | 3130800747 |
10 | 1220130097 |
11 | 57680588a |
12 | 2a0751981 |
13 | 165a21b94 |
14 | b808db7b |
15 | 721b5067 |
hex | 48b9b531 |
1220130097 has 2 divisors, whose sum is σ = 1220130098. Its totient is φ = 1220130096.
The previous prime is 1220130071. The next prime is 1220130127. The reversal of 1220130097 is 7900310221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 934891776 + 285238321 = 30576^2 + 16889^2 .
It is a cyclic number.
It is not a de Polignac number, because 1220130097 - 219 = 1219605809 is a prime.
It is not a weakly prime, because it can be changed into another prime (1220130007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610065048 + 610065049.
It is an arithmetic number, because the mean of its divisors is an integer number (610065049).
Almost surely, 21220130097 is an apocalyptic number.
It is an amenable number.
1220130097 is a deficient number, since it is larger than the sum of its proper divisors (1).
1220130097 is an equidigital number, since it uses as much as digits as its factorization.
1220130097 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 756, while the sum is 25.
The square root of 1220130097 is about 34930.3606766377. The cubic root of 1220130097 is about 1068.5677103596.
The spelling of 1220130097 in words is "one billion, two hundred twenty million, one hundred thirty thousand, ninety-seven".
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