Base | Representation |
---|---|
bin | 111010001100… |
… | …0111110011110 |
3 | 2010102010020021 |
4 | 1310120332132 |
5 | 30302323011 |
6 | 3005542354 |
7 | 520224241 |
oct | 164307636 |
9 | 63363207 |
10 | 30511006 |
11 | 1624a409 |
12 | a2749ba |
13 | 6423766 |
14 | 40a3258 |
15 | 2a2a471 |
hex | 1d18f9e |
30511006 has 8 divisors (see below), whose sum is σ = 47242944. Its totient is φ = 14763360.
The previous prime is 30511001. The next prime is 30511009. The reversal of 30511006 is 60011503.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30511001) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245995 + ... + 246118.
It is an arithmetic number, because the mean of its divisors is an integer number (5905368).
Almost surely, 230511006 is an apocalyptic number.
30511006 is a deficient number, since it is larger than the sum of its proper divisors (16731938).
30511006 is a wasteful number, since it uses less digits than its factorization.
30511006 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 492146.
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 30511006 is about 5523.6768551392. The cubic root of 30511006 is about 312.4775655361.
Adding to 30511006 its reverse (60011503), we get a palindrome (90522509).
It can be divided in two parts, 305 and 11006, that added together give a palindrome (11311).
The spelling of 30511006 in words is "thirty million, five hundred eleven thousand, six".
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