Base | Representation |
---|---|
bin | 111010001001… |
… | …1001101011010 |
3 | 2010100220211110 |
4 | 1310103031122 |
5 | 30301044021 |
6 | 3005241150 |
7 | 520065336 |
oct | 164231532 |
9 | 63326743 |
10 | 30487386 |
11 | 16233696 |
12 | a2631b6 |
13 | 6415a97 |
14 | 40987c6 |
15 | 2a23476 |
hex | 1d1335a |
30487386 has 8 divisors (see below), whose sum is σ = 60974784. Its totient is φ = 10162460.
The previous prime is 30487367. The next prime is 30487393. The reversal of 30487386 is 68378403.
It is a sphenic number, since it is the product of 3 distinct primes.
30487386 is an admirable number.
It is a super-2 number, since 2×304873862 = 1858961410225992, which contains 22 as substring.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2540610 + ... + 2540621.
It is an arithmetic number, because the mean of its divisors is an integer number (7621848).
Almost surely, 230487386 is an apocalyptic number.
30487386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30487386 is a wasteful number, since it uses less digits than its factorization.
30487386 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5081236.
The product of its (nonzero) digits is 96768, while the sum is 39.
The square root of 30487386 is about 5521.5383725915. The cubic root of 30487386 is about 312.3969102091.
The spelling of 30487386 in words is "thirty million, four hundred eighty-seven thousand, three hundred eighty-six".
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