Base | Representation |
---|---|
bin | 111001010101… |
… | …1010100111000 |
3 | 2002120022010222 |
4 | 1302223110320 |
5 | 30143440010 |
6 | 2552155212 |
7 | 513343652 |
oct | 162532470 |
9 | 62508128 |
10 | 30061880 |
11 | 15a72a32 |
12 | a098b08 |
13 | 62c71c4 |
14 | 3dc76d2 |
15 | 298c355 |
hex | 1cab538 |
30061880 has 32 divisors (see below), whose sum is σ = 68167440. Its totient is φ = 11930880.
The previous prime is 30061879. The next prime is 30061903. The reversal of 30061880 is 8816003.
It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2372 + ... + 8108.
Almost surely, 230061880 is an apocalyptic number.
It is an amenable number.
30061880 is an abundant number, since it is smaller than the sum of its proper divisors (38105560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30061880 is a wasteful number, since it uses less digits than its factorization.
30061880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5879 (or 5875 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 30061880 is about 5482.8715104405. The cubic root of 30061880 is about 310.9367433716.
Adding to 30061880 its reverse (8816003), we get a palindrome (38877883).
The spelling of 30061880 in words is "thirty million, sixty-one thousand, eight hundred eighty".
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