Base | Representation |
---|---|
bin | 11100000100000000… |
… | …100010101101101001 |
3 | 2212202221201022200022 |
4 | 130010000202231221 |
5 | 443202244201441 |
6 | 21501545450225 |
7 | 2114461650665 |
oct | 340400425551 |
9 | 85687638608 |
10 | 30132022121 |
11 | 11862817223 |
12 | 5a0b1a0975 |
13 | 2ac283b0b6 |
14 | 165bbb38a5 |
15 | bb550684b |
hex | 704022b69 |
30132022121 has 4 divisors (see below), whose sum is σ = 30210696192. Its totient is φ = 30053348052.
The previous prime is 30132022111. The next prime is 30132022133. The reversal of 30132022121 is 12122023103.
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: 12122023103 = 73 ⋅166055111.
It is a cyclic number.
It is not a de Polignac number, because 30132022121 - 210 = 30132021097 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30132022121.
It is not an unprimeable number, because it can be changed into a prime (30132022111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39336461 + ... + 39337226.
It is an arithmetic number, because the mean of its divisors is an integer number (7552674048).
Almost surely, 230132022121 is an apocalyptic number.
It is an amenable number.
30132022121 is a deficient number, since it is larger than the sum of its proper divisors (78674071).
30132022121 is an equidigital number, since it uses as much as digits as its factorization.
30132022121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78674070.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 30132022121 its reverse (12122023103), we get a palindrome (42254045224).
The spelling of 30132022121 in words is "thirty billion, one hundred thirty-two million, twenty-two thousand, one hundred twenty-one".
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