Base | Representation |
---|---|
bin | 111001110110… |
… | …1000010101111 |
3 | 2010001222101102 |
4 | 1303231002233 |
5 | 30231043210 |
6 | 3002033315 |
7 | 515544506 |
oct | 163550257 |
9 | 63058342 |
10 | 30331055 |
11 | 16137197 |
12 | a1a883b |
13 | 638c891 |
14 | 405783d |
15 | 29e1ea5 |
hex | 1ced0af |
30331055 has 8 divisors (see below), whose sum is σ = 36549744. Its totient is φ = 24163200.
The previous prime is 30331033. The next prime is 30331061. The reversal of 30331055 is 55013303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30331055 - 28 = 30330799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11381 + ... + 13790.
It is an arithmetic number, because the mean of its divisors is an integer number (4568718).
Almost surely, 230331055 is an apocalyptic number.
30331055 is a deficient number, since it is larger than the sum of its proper divisors (6218689).
30331055 is a wasteful number, since it uses less digits than its factorization.
30331055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25417.
The product of its (nonzero) digits is 675, while the sum is 20.
The square root of 30331055 is about 5507.3637068928. The cubic root of 30331055 is about 311.8620328797.
Adding to 30331055 its reverse (55013303), we get a palindrome (85344358).
The spelling of 30331055 in words is "thirty million, three hundred thirty-one thousand, fifty-five".
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