Base | Representation |
---|---|
bin | 10011001110011111001 |
3 | 1012000012200 |
4 | 2121303321 |
5 | 130130014 |
6 | 21300413 |
7 | 5232522 |
oct | 2316371 |
9 | 1160180 |
10 | 630009 |
11 | 3a0376 |
12 | 264709 |
13 | 1909b3 |
14 | 125849 |
15 | c6a09 |
hex | 99cf9 |
630009 has 6 divisors (see below), whose sum is σ = 910026. Its totient is φ = 420000.
The previous prime is 629989. The next prime is 630017. The reversal of 630009 is 900036.
It can be written as a sum of positive squares in only one way, i.e., 608400 + 21609 = 780^2 + 147^2 .
It is not a de Polignac number, because 630009 - 25 = 629977 is a prime.
It is a super-2 number, since 2×6300092 = 793822680162, which contains 22 as substring.
It is an Ulam number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 629973 and 630000.
It is not an unprimeable number, because it can be changed into a prime (630029) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34992 + ... + 35009.
It is an arithmetic number, because the mean of its divisors is an integer number (151671).
2630009 is an apocalyptic number.
It is an amenable number.
630009 is a deficient number, since it is larger than the sum of its proper divisors (280017).
630009 is a wasteful number, since it uses less digits than its factorization.
630009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70007 (or 70004 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
The square root of 630009 is about 793.7310627662. The cubic root of 630009 is about 85.7265970411.
The spelling of 630009 in words is "six hundred thirty thousand, nine".
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