Base | Representation |
---|---|
bin | 11100001001010000… |
… | …100111010001110001 |
3 | 2220000002111012220012 |
4 | 130021100213101301 |
5 | 443342322334301 |
6 | 21514414024305 |
7 | 2116611535424 |
oct | 341120472161 |
9 | 86002435805 |
10 | 30220121201 |
11 | 118a851a386 |
12 | 5a347a8095 |
13 | 2b07b75a2a |
14 | 16697879bb |
15 | bbd109ebb |
hex | 709427471 |
30220121201 has 4 divisors (see below), whose sum is σ = 30246106992. Its totient is φ = 30194135412.
The previous prime is 30220121171. The next prime is 30220121233. The reversal of 30220121201 is 10212102203.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10212102203 = 73 ⋅139891811.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30220121201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30220121401) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12991151 + ... + 12993476.
It is an arithmetic number, because the mean of its divisors is an integer number (7561526748).
Almost surely, 230220121201 is an apocalyptic number.
It is an amenable number.
30220121201 is a deficient number, since it is larger than the sum of its proper divisors (25985791).
30220121201 is a wasteful number, since it uses less digits than its factorization.
30220121201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25985790.
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 30220121201 its reverse (10212102203), we get a palindrome (40432223404).
The spelling of 30220121201 in words is "thirty billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.088 sec. • engine limits •