Base | Representation |
---|---|
bin | 111001110111… |
… | …1111000001001 |
3 | 2010002120022102 |
4 | 1303233320021 |
5 | 30231431130 |
6 | 3002203145 |
7 | 515623403 |
oct | 163577011 |
9 | 63076272 |
10 | 30342665 |
11 | 16144991 |
12 | a1b34b5 |
13 | 6394c52 |
14 | 405bb73 |
15 | 29e5645 |
hex | 1cefe09 |
30342665 has 8 divisors (see below), whose sum is σ = 37299528. Its totient is φ = 23681920.
The previous prime is 30342619. The next prime is 30342673. The reversal of 30342665 is 56624303.
It can be written as a sum of positive squares in 4 ways, for example, as 868624 + 29474041 = 932^2 + 5429^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30342665 - 222 = 26148361 is a prime.
It is a Duffinian 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, 73802 + ... + 74211.
It is an arithmetic number, because the mean of its divisors is an integer number (4662441).
Almost surely, 230342665 is an apocalyptic number.
It is an amenable number.
30342665 is a deficient number, since it is larger than the sum of its proper divisors (6956863).
30342665 is a wasteful number, since it uses less digits than its factorization.
30342665 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148059.
The product of its (nonzero) digits is 12960, while the sum is 29.
The square root of 30342665 is about 5508.4176493799. The cubic root of 30342665 is about 311.9018189046.
Adding to 30342665 its reverse (56624303), we get a palindrome (86966968).
The spelling of 30342665 in words is "thirty million, three hundred forty-two thousand, six hundred sixty-five".
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