Base | Representation |
---|---|
bin | 11100001001010000… |
… | …100111010100111001 |
3 | 2220000002111020011121 |
4 | 130021100213110321 |
5 | 443342322341101 |
6 | 21514414025241 |
7 | 2116611536131 |
oct | 341120472471 |
9 | 86002436147 |
10 | 30220121401 |
11 | 118a851a548 |
12 | 5a347a8221 |
13 | 2b07b75b52 |
14 | 1669787ac1 |
15 | bbd10a0a1 |
hex | 709427539 |
30220121401 has 2 divisors, whose sum is σ = 30220121402. Its totient is φ = 30220121400.
The previous prime is 30220121363. The next prime is 30220121431. The reversal of 30220121401 is 10412102203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 17721999376 + 12498122025 = 133124^2 + 111795^2 .
It is a cyclic number.
It is not a de Polignac number, because 30220121401 - 219 = 30219597113 is a prime.
It is not a weakly prime, because it can be changed into another prime (30220121431) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110060700 + 15110060701.
It is an arithmetic number, because the mean of its divisors is an integer number (15110060701).
Almost surely, 230220121401 is an apocalyptic number.
It is an amenable number.
30220121401 is a deficient number, since it is larger than the sum of its proper divisors (1).
30220121401 is an equidigital number, since it uses as much as digits as its factorization.
30220121401 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96, while the sum is 16.
Adding to 30220121401 its reverse (10412102203), we get a palindrome (40632223604).
The spelling of 30220121401 in words is "thirty billion, two hundred twenty million, one hundred twenty-one thousand, four hundred one".
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