Base | Representation |
---|---|
bin | 11100010010111111… |
… | …100101100011100101 |
3 | 2220102110210011021002 |
4 | 130102333211203211 |
5 | 444211124223421 |
6 | 21542530203045 |
7 | 2123633615111 |
oct | 342277454345 |
9 | 86373704232 |
10 | 30383429861 |
11 | 11981721614 |
12 | 5a7b423485 |
13 | 2b32954485 |
14 | 1683338741 |
15 | bcc617b0b |
hex | 712fe58e5 |
30383429861 has 4 divisors (see below), whose sum is σ = 30388619724. Its totient is φ = 30378240000.
The previous prime is 30383429837. The next prime is 30383429873. The reversal of 30383429861 is 16892438303.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 13533832225 + 16849597636 = 116335^2 + 129806^2 .
It is a cyclic number.
It is not a de Polignac number, because 30383429861 - 226 = 30316320997 is a prime.
It is a super-4 number, since 4×303834298614 (a number of 43 digits) contains 4444 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 (30383429821) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586140 + ... + 2597861.
It is an arithmetic number, because the mean of its divisors is an integer number (7597154931).
Almost surely, 230383429861 is an apocalyptic number.
It is an amenable number.
30383429861 is a deficient number, since it is larger than the sum of its proper divisors (5189863).
30383429861 is an equidigital number, since it uses as much as digits as its factorization.
30383429861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5189862.
The product of its (nonzero) digits is 746496, while the sum is 47.
The spelling of 30383429861 in words is "thirty billion, three hundred eighty-three million, four hundred twenty-nine thousand, eight hundred sixty-one".
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