Base | Representation |
---|---|
bin | 111011000110… |
… | …1100010011001 |
3 | 2011022101011001 |
4 | 1312031202121 |
5 | 30413112231 |
6 | 3024105001 |
7 | 524253211 |
oct | 166154231 |
9 | 64271131 |
10 | 30988441 |
11 | 16546090 |
12 | a465161 |
13 | 655cb73 |
14 | 4189241 |
15 | 2ac1b61 |
hex | 1d8d899 |
30988441 has 8 divisors (see below), whose sum is σ = 34053984. Its totient is φ = 27964320.
The previous prime is 30988439. The next prime is 30988453. The reversal of 30988441 is 14488903.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30988441 - 21 = 30988439 is a prime.
It is a super-2 number, since 2×309884412 = 1920566951220962, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30988441.
It is not an unprimeable number, because it can be changed into a prime (30988421) by changing a digit.
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, 8775 + ... + 11788.
It is an arithmetic number, because the mean of its divisors is an integer number (4256748).
Almost surely, 230988441 is an apocalyptic number.
It is an amenable number.
30988441 is a deficient number, since it is larger than the sum of its proper divisors (3065543).
30988441 is a wasteful number, since it uses less digits than its factorization.
30988441 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20711.
The product of its (nonzero) digits is 27648, while the sum is 37.
The square root of 30988441 is about 5566.7262372062. The cubic root of 30988441 is about 314.0990160638.
The spelling of 30988441 in words is "thirty million, nine hundred eighty-eight thousand, four hundred forty-one".
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