Base | Representation |
---|---|
bin | 111001010110… |
… | …0111011000101 |
3 | 2002120122010020 |
4 | 1302230323011 |
5 | 30144142141 |
6 | 2552245353 |
7 | 513402015 |
oct | 162547305 |
9 | 62518106 |
10 | 30068421 |
11 | 15a77939 |
12 | a0a0859 |
13 | 62ca186 |
14 | 3dc9c45 |
15 | 298e266 |
hex | 1cacec5 |
30068421 has 8 divisors (see below), whose sum is σ = 40117824. Its totient is φ = 20032320.
The previous prime is 30068411. The next prime is 30068449. The reversal of 30068421 is 12486003.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30068421 - 29 = 30067909 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30068391 and 30068400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30068411) 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, 4765 + ... + 9101.
It is an arithmetic number, because the mean of its divisors is an integer number (5014728).
Almost surely, 230068421 is an apocalyptic number.
It is an amenable number.
30068421 is a deficient number, since it is larger than the sum of its proper divisors (10049403).
30068421 is a wasteful number, since it uses less digits than its factorization.
30068421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6651.
The product of its (nonzero) digits is 1152, while the sum is 24.
The square root of 30068421 is about 5483.4679720046. The cubic root of 30068421 is about 310.9592934112.
The spelling of 30068421 in words is "thirty million, sixty-eight thousand, four hundred twenty-one".
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