Base | Representation |
---|---|
bin | 11001010101111011111 |
3 | 1120012010201 |
4 | 3022233133 |
5 | 203033211 |
6 | 25444331 |
7 | 10026040 |
oct | 3125737 |
9 | 1505121 |
10 | 830431 |
11 | 517a08 |
12 | 3406a7 |
13 | 230ca4 |
14 | 1788c7 |
15 | 1160c1 |
hex | cabdf |
830431 has 4 divisors (see below), whose sum is σ = 949072. Its totient is φ = 711792.
The previous prime is 830419. The next prime is 830441. The reversal of 830431 is 134038.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 830431 - 211 = 828383 is a prime.
It is a super-2 number, since 2×8304312 = 1379231291522, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 830399 and 830408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (830411) 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, 59310 + ... + 59323.
It is an arithmetic number, because the mean of its divisors is an integer number (237268).
2830431 is an apocalyptic number.
830431 is a deficient number, since it is larger than the sum of its proper divisors (118641).
830431 is a wasteful number, since it uses less digits than its factorization.
830431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 118640.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 830431 is about 911.2798691950. The cubic root of 830431 is about 93.9942278031.
Adding to 830431 its reverse (134038), we get a palindrome (964469).
The spelling of 830431 in words is "eight hundred thirty thousand, four hundred thirty-one".
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