Base | Representation |
---|---|
bin | 111111011111011… |
… | …1101000000101000 |
3 | 12111110210011100101 |
4 | 1332332331000220 |
5 | 13330342311130 |
6 | 551222315144 |
7 | 103536242062 |
oct | 17676750050 |
9 | 5443704311 |
10 | 2130432040 |
11 | 9a3634140 |
12 | 4b5588ab4 |
13 | 27c4b4699 |
14 | 162d2c732 |
15 | c70791ca |
hex | 7efbd028 |
2130432040 has 128 divisors (see below), whose sum is σ = 5501675520. Its totient is φ = 734905600.
The previous prime is 2130432023. The next prime is 2130432077. The reversal of 2130432040 is 402340312.
It is a junction number, because it is equal to n+sod(n) for n = 2130431999 and 2130432017.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1324917 + ... + 1326523.
It is an arithmetic number, because the mean of its divisors is an integer number (42981840).
Almost surely, 22130432040 is an apocalyptic number.
2130432040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2130432040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2750837760).
2130432040 is an abundant number, since it is smaller than the sum of its proper divisors (3371243480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130432040 is a wasteful number, since it uses less digits than its factorization.
2130432040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1783 (or 1779 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 19.
The square root of 2130432040 is about 46156.6034278953. The cubic root of 2130432040 is about 1286.7353380741.
Adding to 2130432040 its reverse (402340312), we get a palindrome (2532772352).
The spelling of 2130432040 in words is "two billion, one hundred thirty million, four hundred thirty-two thousand, forty".
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