Base | Representation |
---|---|
bin | 111010111010… |
… | …1100001011010 |
3 | 2011010101012211 |
4 | 1311311201122 |
5 | 30401440244 |
6 | 3022025334 |
7 | 523363345 |
oct | 165654132 |
9 | 64111184 |
10 | 30890074 |
11 | 16489196 |
12 | a41824a |
13 | 6527167 |
14 | 416145c |
15 | 2aa2934 |
hex | 1d7585a |
30890074 has 8 divisors (see below), whose sum is σ = 47829888. Its totient is φ = 14946780.
The previous prime is 30890063. The next prime is 30890087. The reversal of 30890074 is 47009803.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249052 + ... + 249175.
It is an arithmetic number, because the mean of its divisors is an integer number (5978736).
Almost surely, 230890074 is an apocalyptic number.
30890074 is a deficient number, since it is larger than the sum of its proper divisors (16939814).
30890074 is a wasteful number, since it uses less digits than its factorization.
30890074 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 498260.
The product of its (nonzero) digits is 6048, while the sum is 31.
The square root of 30890074 is about 5557.8839498500. The cubic root of 30890074 is about 313.7663142895.
Adding to 30890074 its reverse (47009803), we get a palindrome (77899877).
The spelling of 30890074 in words is "thirty million, eight hundred ninety thousand, seventy-four".
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