Base | Representation |
---|---|
bin | 111010000111… |
… | …0101011110111 |
3 | 2010022222102010 |
4 | 1310032223313 |
5 | 30300000410 |
6 | 3005015303 |
7 | 516660324 |
oct | 164165367 |
9 | 63288363 |
10 | 30468855 |
11 | 1622077a |
12 | a254533 |
13 | 640a511 |
14 | 4091b4b |
15 | 2a1cc20 |
hex | 1d0eaf7 |
30468855 has 8 divisors (see below), whose sum is σ = 48750192. Its totient is φ = 16250048.
The previous prime is 30468847. The next prime is 30468857. The reversal of 30468855 is 55886403.
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 30468855 - 23 = 30468847 is a prime.
It is a super-2 number, since 2×304688552 = 1856702250022050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30468857) 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, 1015614 + ... + 1015643.
It is an arithmetic number, because the mean of its divisors is an integer number (6093774).
Almost surely, 230468855 is an apocalyptic number.
30468855 is a deficient number, since it is larger than the sum of its proper divisors (18281337).
30468855 is a wasteful number, since it uses less digits than its factorization.
30468855 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2031265.
The product of its (nonzero) digits is 115200, while the sum is 39.
The square root of 30468855 is about 5519.8600525738. The cubic root of 30468855 is about 312.3336031477. Note that the first 3 decimals are identical.
The spelling of 30468855 in words is "thirty million, four hundred sixty-eight thousand, eight hundred fifty-five".
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