Base | Representation |
---|---|
bin | 11011111101011110… |
… | …000100100000101101 |
3 | 2212111022021222201001 |
4 | 123331132010200231 |
5 | 442441203302341 |
6 | 21443030320301 |
7 | 2111660346133 |
oct | 337536044055 |
9 | 85438258631 |
10 | 30022322221 |
11 | 11806900051 |
12 | 599a4b9091 |
13 | 2aa5bac508 |
14 | 164b3b9753 |
15 | baaa87d31 |
hex | 6fd78482d |
30022322221 has 4 divisors (see below), whose sum is σ = 30531175200. Its totient is φ = 29513469244.
The previous prime is 30022322219. The next prime is 30022322227. The reversal of 30022322221 is 12222322003.
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.
It is a cyclic number.
It is not a de Polignac number, because 30022322221 - 21 = 30022322219 is a prime.
It is a super-3 number, since 3×300223222213 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30022322227) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254426401 + ... + 254426518.
It is an arithmetic number, because the mean of its divisors is an integer number (7632793800).
Almost surely, 230022322221 is an apocalyptic number.
It is an amenable number.
30022322221 is a deficient number, since it is larger than the sum of its proper divisors (508852979).
30022322221 is an equidigital number, since it uses as much as digits as its factorization.
30022322221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 508852978.
The product of its (nonzero) digits is 576, while the sum is 19.
Adding to 30022322221 its reverse (12222322003), we get a palindrome (42244644224).
The spelling of 30022322221 in words is "thirty billion, twenty-two million, three hundred twenty-two thousand, two hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •