Base | Representation |
---|---|
bin | 111001111101… |
… | …0111101010000 |
3 | 2010011212120021 |
4 | 1303322331100 |
5 | 30234404143 |
6 | 3003153224 |
7 | 516202615 |
oct | 163727520 |
9 | 63155507 |
10 | 30388048 |
11 | 16175a99 |
12 | a215814 |
13 | 63ac7c2 |
14 | 407050c |
15 | 2a03ced |
hex | 1cfaf50 |
30388048 has 10 divisors (see below), whose sum is σ = 58876874. Its totient is φ = 15194016.
The previous prime is 30388021. The next prime is 30388069. The reversal of 30388048 is 84088303.
It is a happy number.
30388048 is nontrivially palindromic in base 7.
It can be written as a sum of positive squares in only one way, i.e., 29289744 + 1098304 = 5412^2 + 1048^2 .
It is a super-2 number, since 2×303880482 = 1846866922500608, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949611 + ... + 949642.
Almost surely, 230388048 is an apocalyptic number.
It is an amenable number.
30388048 is a deficient number, since it is larger than the sum of its proper divisors (28488826).
30388048 is a wasteful number, since it uses less digits than its factorization.
30388048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1899261 (or 1899255 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 34.
The square root of 30388048 is about 5512.5355327653. The cubic root of 30388048 is about 312.0572434963.
The spelling of 30388048 in words is "thirty million, three hundred eighty-eight thousand, forty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.105 sec. • engine limits •