Base | Representation |
---|---|
bin | 111001111101… |
… | …0111011001010 |
3 | 2010011212101022 |
4 | 1303322323022 |
5 | 30234403124 |
6 | 3003152442 |
7 | 516202334 |
oct | 163727312 |
9 | 63155338 |
10 | 30387914 |
11 | 16175987 |
12 | a215722 |
13 | 63ac71b |
14 | 4070454 |
15 | 2a03c5e |
hex | 1cfaeca |
30387914 has 8 divisors (see below), whose sum is σ = 45709920. Its totient is φ = 15151276.
The previous prime is 30387913. The next prime is 30387919. The reversal of 30387914 is 41978303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (30387913) 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, 20444 + ... + 21879.
It is an arithmetic number, because the mean of its divisors is an integer number (5713740).
Almost surely, 230387914 is an apocalyptic number.
30387914 is a deficient number, since it is larger than the sum of its proper divisors (15322006).
30387914 is a wasteful number, since it uses less digits than its factorization.
30387914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42684.
The product of its (nonzero) digits is 18144, while the sum is 35.
The square root of 30387914 is about 5512.5233786352. The cubic root of 30387914 is about 312.0567848101.
The spelling of 30387914 in words is "thirty million, three hundred eighty-seven thousand, nine hundred fourteen".
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