Base | Representation |
---|---|
bin | 100101100011001011110 |
3 | 2022111211111 |
4 | 10230121132 |
5 | 303333210 |
6 | 42212234 |
7 | 13313155 |
oct | 4543136 |
9 | 2274744 |
10 | 1230430 |
11 | 770493 |
12 | 4b407a |
13 | 341086 |
14 | 24059c |
15 | 19488a |
hex | 12c65e |
1230430 has 16 divisors (see below), whose sum is σ = 2247264. Its totient is φ = 484960.
The previous prime is 1230401. The next prime is 1230433. The reversal of 1230430 is 340321.
It is a self number, because there is not a number n which added to its sum of digits gives 1230430.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157 + ... + 1576.
It is an arithmetic number, because the mean of its divisors is an integer number (140454).
21230430 is an apocalyptic number.
1230430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1230430 is a deficient number, since it is larger than the sum of its proper divisors (1016834).
1230430 is a wasteful number, since it uses less digits than its factorization.
1230430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1811.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 1230430 is about 1109.2474926724. The cubic root of 1230430 is about 107.1566111444.
Adding to 1230430 its reverse (340321), we get a palindrome (1570751).
The spelling of 1230430 in words is "one million, two hundred thirty thousand, four hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •