Base | Representation |
---|---|
bin | 111010000010… |
… | …1010010110011 |
3 | 2010021000122101 |
4 | 1310011102303 |
5 | 30242233022 |
6 | 3004121231 |
7 | 516440221 |
oct | 164052263 |
9 | 63230571 |
10 | 30430387 |
11 | 161a4889 |
12 | a236217 |
13 | 63c5b60 |
14 | 4081b11 |
15 | 2a11627 |
hex | 1d054b3 |
30430387 has 8 divisors (see below), whose sum is σ = 33233760. Its totient is φ = 27693120.
The previous prime is 30430349. The next prime is 30430409. The reversal of 30430387 is 78303403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-30430387 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30433387) 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, 15562 + ... + 17407.
It is an arithmetic number, because the mean of its divisors is an integer number (4154220).
Almost surely, 230430387 is an apocalyptic number.
30430387 is a deficient number, since it is larger than the sum of its proper divisors (2803373).
30430387 is a wasteful number, since it uses less digits than its factorization.
30430387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33053.
The product of its (nonzero) digits is 6048, while the sum is 28.
The square root of 30430387 is about 5516.3744434184. The cubic root of 30430387 is about 312.2021037419.
The spelling of 30430387 in words is "thirty million, four hundred thirty thousand, three hundred eighty-seven".
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