Base | Representation |
---|---|
bin | 110111111110101000… |
… | …0001110111101011101 |
3 | 102111021211222112211211 |
4 | 1233331100032331131 |
5 | 3432144012230341 |
6 | 131120341544421 |
7 | 11453663465425 |
oct | 1577520167535 |
9 | 374254875754 |
10 | 120213008221 |
11 | 46a89122379 |
12 | 1b36b115111 |
13 | b44a377537 |
14 | 5b65753485 |
15 | 31d8a2e181 |
hex | 1bfd40ef5d |
120213008221 has 2 divisors, whose sum is σ = 120213008222. Its totient is φ = 120213008220.
The previous prime is 120213008219. The next prime is 120213008249. The reversal of 120213008221 is 122800312021.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 105291164196 + 14921844025 = 324486^2 + 122155^2 .
It is a cyclic number.
It is not a de Polignac number, because 120213008221 - 21 = 120213008219 is a prime.
Together with 120213008219, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 120213008192 and 120213008201.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (120213009221) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106504110 + 60106504111.
It is an arithmetic number, because the mean of its divisors is an integer number (60106504111).
Almost surely, 2120213008221 is an apocalyptic number.
It is an amenable number.
120213008221 is a deficient number, since it is larger than the sum of its proper divisors (1).
120213008221 is an equidigital number, since it uses as much as digits as its factorization.
120213008221 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 384, while the sum is 22.
The spelling of 120213008221 in words is "one hundred twenty billion, two hundred thirteen million, eight thousand, two hundred twenty-one".
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