Base | Representation |
---|---|
bin | 111001011111… |
… | …1100100100111 |
3 | 2002201111220100 |
4 | 1302333210213 |
5 | 30204113212 |
6 | 2554035143 |
7 | 514140510 |
oct | 162774447 |
9 | 62644810 |
10 | 30144807 |
11 | 1601a270 |
12 | a118ab3 |
13 | 6325b84 |
14 | 4009a07 |
15 | 29a6bdc |
hex | 1cbf927 |
30144807 has 24 divisors (see below), whose sum is σ = 54288000. Its totient is φ = 15659280.
The previous prime is 30144767. The next prime is 30144817. The reversal of 30144807 is 70844103.
It is not a de Polignac number, because 30144807 - 28 = 30144551 is a prime.
It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 21057 + ... + 22442.
It is an arithmetic number, because the mean of its divisors is an integer number (2262000).
Almost surely, 230144807 is an apocalyptic number.
30144807 is a deficient number, since it is larger than the sum of its proper divisors (24143193).
30144807 is a wasteful number, since it uses less digits than its factorization.
30144807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43523 (or 43520 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 30144807 is about 5490.4286717888. The cubic root of 30144807 is about 311.2223917061. Note that the first 3 decimals are identical.
The spelling of 30144807 in words is "thirty million, one hundred forty-four thousand, eight hundred seven".
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