Base | Representation |
---|---|
bin | 111100110011011… |
… | …111011110011110 |
3 | 2122002120000222011 |
4 | 330303133132132 |
5 | 4042123144410 |
6 | 245120541434 |
7 | 34164654346 |
oct | 7463373636 |
9 | 2562500864 |
10 | 1020131230 |
11 | 483923768 |
12 | 24578187a |
13 | 133468261 |
14 | 996abd26 |
15 | 5e85b18a |
hex | 3ccdf79e |
1020131230 has 16 divisors (see below), whose sum is σ = 1852488144. Its totient is φ = 404440960.
The previous prime is 1020131051. The next prime is 1020131251. The reversal of 1020131230 is 321310201.
It is a self number, because there is not a number n which added to its sum of digits gives 1020131230.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450256 + ... + 452515.
It is an arithmetic number, because the mean of its divisors is an integer number (115780509).
Almost surely, 21020131230 is an apocalyptic number.
1020131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1020131230 is a deficient number, since it is larger than the sum of its proper divisors (832356914).
1020131230 is a wasteful number, since it uses less digits than its factorization.
1020131230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 902891.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 1020131230 is about 31939.4932646089. The cubic root of 1020131230 is about 1006.6658773488.
Adding to 1020131230 its reverse (321310201), we get a palindrome (1341441431).
The spelling of 1020131230 in words is "one billion, twenty million, one hundred thirty-one thousand, two hundred thirty".
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