Base | Representation |
---|---|
bin | 11011111100110011… |
… | …101110000101010111 |
3 | 2212110112101221202012 |
4 | 123330303232011113 |
5 | 442430333022221 |
6 | 21441552334435 |
7 | 2111464110062 |
oct | 337463560527 |
9 | 85415357665 |
10 | 30011220311 |
11 | 11800608016 |
12 | 599684441b |
13 | 2aa37c3237 |
14 | 1649b298d9 |
15 | ba9ae365b |
hex | 6fccee157 |
30011220311 has 8 divisors (see below), whose sum is σ = 31403700864. Its totient is φ = 28645263360.
The previous prime is 30011220299. The next prime is 30011220319. The reversal of 30011220311 is 11302211003.
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 30011220311 - 214 = 30011203927 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30011220319) 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, 6628586 + ... + 6633111.
It is an arithmetic number, because the mean of its divisors is an integer number (3925462608).
Almost surely, 230011220311 is an apocalyptic number.
30011220311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30011220311 is a deficient number, since it is larger than the sum of its proper divisors (1392480553).
30011220311 is a wasteful number, since it uses less digits than its factorization.
30011220311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13261801.
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 30011220311 its reverse (11302211003), we get a palindrome (41313431314).
The spelling of 30011220311 in words is "thirty billion, eleven million, two hundred twenty thousand, three hundred eleven".
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