Base | Representation |
---|---|
bin | 111001110111… |
… | …0111100110111 |
3 | 2010002101002220 |
4 | 1303232330313 |
5 | 30231320441 |
6 | 3002133423 |
7 | 515606343 |
oct | 163567467 |
9 | 63071086 |
10 | 30338871 |
11 | 16142052 |
12 | a1b1273 |
13 | 63932c4 |
14 | 405a623 |
15 | 29e4466 |
hex | 1ceef37 |
30338871 has 8 divisors (see below), whose sum is σ = 40541424. Its totient is φ = 20181120.
The previous prime is 30338857. The next prime is 30338879. The reversal of 30338871 is 17883303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30338871 - 26 = 30338807 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30338879) 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, 9586 + ... + 12351.
It is an arithmetic number, because the mean of its divisors is an integer number (5067678).
Almost surely, 230338871 is an apocalyptic number.
30338871 is a deficient number, since it is larger than the sum of its proper divisors (10202553).
30338871 is a wasteful number, since it uses less digits than its factorization.
30338871 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22401.
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 30338871 is about 5508.0732565935. The cubic root of 30338871 is about 311.8888184554. Note that the first 4 decimals are identical.
The spelling of 30338871 in words is "thirty million, three hundred thirty-eight thousand, eight hundred seventy-one".
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