Base | Representation |
---|---|
bin | 11011111110000000… |
… | …000000111001100011 |
3 | 2212111221001001121101 |
4 | 123332000000321203 |
5 | 443000443022243 |
6 | 21443545135231 |
7 | 2112126106126 |
oct | 337600007143 |
9 | 85457031541 |
10 | 30031220323 |
11 | 11810928355 |
12 | 59a148a517 |
13 | 2aa79a6670 |
14 | 164c6543bd |
15 | bab74454d |
hex | 6fe000e63 |
30031220323 has 8 divisors (see below), whose sum is σ = 32824021328. Its totient is φ = 27307377504.
The previous prime is 30031220321. The next prime is 30031220327. The reversal of 30031220323 is 32302213003.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30031220323 - 21 = 30031220321 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 30031220323.
It is not an unprimeable number, because it can be changed into a prime (30031220321) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17238636 + ... + 17240377.
It is an arithmetic number, because the mean of its divisors is an integer number (4103002666).
Almost surely, 230031220323 is an apocalyptic number.
30031220323 is a deficient number, since it is larger than the sum of its proper divisors (2792801005).
30031220323 is a wasteful number, since it uses less digits than its factorization.
30031220323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34479093.
The product of its (nonzero) digits is 648, while the sum is 19.
Adding to 30031220323 its reverse (32302213003), we get a palindrome (62333433326).
The spelling of 30031220323 in words is "thirty billion, thirty-one million, two hundred twenty thousand, three hundred twenty-three".
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