Base | Representation |
---|---|
bin | 111001011111… |
… | …1100100101011 |
3 | 2002201111220111 |
4 | 1302333210223 |
5 | 30204113221 |
6 | 2554035151 |
7 | 514140514 |
oct | 162774453 |
9 | 62644814 |
10 | 30144811 |
11 | 1601a274 |
12 | a118ab7 |
13 | 6325b88 |
14 | 4009a0b |
15 | 29a6be1 |
hex | 1cbf92b |
30144811 has 8 divisors (see below), whose sum is σ = 32270400. Its totient is φ = 28073160.
The previous prime is 30144767. The next prime is 30144817. The reversal of 30144811 is 11844103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30144811 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30144817) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12325 + ... + 14566.
It is an arithmetic number, because the mean of its divisors is an integer number (4033800).
Almost surely, 230144811 is an apocalyptic number.
30144811 is a deficient number, since it is larger than the sum of its proper divisors (2125589).
30144811 is a wasteful number, since it uses less digits than its factorization.
30144811 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26969.
The product of its (nonzero) digits is 384, while the sum is 22.
The square root of 30144811 is about 5490.4290360590. The cubic root of 30144811 is about 311.2224054718. Note that the first 3 decimals are identical.
Adding to 30144811 its reverse (11844103), we get a palindrome (41988914).
The spelling of 30144811 in words is "thirty million, one hundred forty-four thousand, eight hundred eleven".
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