Base | Representation |
---|---|
bin | 111101011101000… |
… | …101000100110100 |
3 | 2122212001220120121 |
4 | 331131011010310 |
5 | 4102421030030 |
6 | 250150341324 |
7 | 34356431344 |
oct | 7535050464 |
9 | 2585056517 |
10 | 1031033140 |
11 | 489a9a505 |
12 | 24935a844 |
13 | 1357b44a7 |
14 | 9ad08d24 |
15 | 607b147a |
hex | 3d745134 |
1031033140 has 12 divisors (see below), whose sum is σ = 2165169636. Its totient is φ = 412413248.
The previous prime is 1031033137. The next prime is 1031033173. The reversal of 1031033140 is 413301301.
1031033140 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 231161616 + 799871524 = 15204^2 + 28282^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25775809 + ... + 25775848.
It is an arithmetic number, because the mean of its divisors is an integer number (180430803).
Almost surely, 21031033140 is an apocalyptic number.
1031033140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1031033140 is an abundant number, since it is smaller than the sum of its proper divisors (1134136496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031033140 is a wasteful number, since it uses less digits than its factorization.
1031033140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51551666 (or 51551664 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 1031033140 is about 32109.7047635135. The cubic root of 1031033140 is about 1010.2391813374.
Adding to 1031033140 its reverse (413301301), we get a palindrome (1444334441).
The spelling of 1031033140 in words is "one billion, thirty-one million, thirty-three thousand, one hundred forty".
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