Base | Representation |
---|---|
bin | 11100010010111011… |
… | …110011111110111101 |
3 | 2220102101220212221200 |
4 | 130102323303332331 |
5 | 444210401043011 |
6 | 21542453050113 |
7 | 2123622324246 |
oct | 342273637675 |
9 | 86371825850 |
10 | 30382440381 |
11 | 11981106167 |
12 | 5a7b026939 |
13 | 2b32698c97 |
14 | 168315bccd |
15 | bcc4be856 |
hex | 712ef3fbd |
30382440381 has 12 divisors (see below), whose sum is σ = 44052616608. Its totient is φ = 20177943624.
The previous prime is 30382440367. The next prime is 30382440397. The reversal of 30382440381 is 18304428303.
It is a happy number.
30382440381 is a `hidden beast` number, since 3 + 0 + 38 + 244 + 0 + 381 = 666.
It is not a de Polignac number, because 30382440381 - 26 = 30382440317 is a prime.
It is a super-2 number, since 2×303824403812 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30382440301) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6415555 + ... + 6420288.
It is an arithmetic number, because the mean of its divisors is an integer number (3671051384).
Almost surely, 230382440381 is an apocalyptic number.
It is an amenable number.
30382440381 is a deficient number, since it is larger than the sum of its proper divisors (13670176227).
30382440381 is a wasteful number, since it uses less digits than its factorization.
30382440381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12836112 (or 12836109 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 36.
Adding to 30382440381 its reverse (18304428303), we get a palindrome (48686868684).
The spelling of 30382440381 in words is "thirty billion, three hundred eighty-two million, four hundred forty thousand, three hundred eighty-one".
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