Base | Representation |
---|---|
bin | 100100101010100… |
… | …0101011011101000 |
3 | 10011201221212222211 |
4 | 1021111011123220 |
5 | 10004421422130 |
6 | 322024454504 |
7 | 42326033425 |
oct | 11125053350 |
9 | 3151855884 |
10 | 1230264040 |
11 | 5814a7645 |
12 | 2a401a434 |
13 | 167b5c6b5 |
14 | b956ad4c |
15 | 73017a2a |
hex | 495456e8 |
1230264040 has 32 divisors (see below), whose sum is σ = 2835612360. Its totient is φ = 480102400.
The previous prime is 1230264031. The next prime is 1230264103. The reversal of 1230264040 is 404620321.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 1040320516 + 189943524 = 32254^2 + 13782^2 .
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, 373441 + ... + 376720.
Almost surely, 21230264040 is an apocalyptic number.
1230264040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1230264040 is an abundant number, since it is smaller than the sum of its proper divisors (1605348320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230264040 is a wasteful number, since it uses less digits than its factorization.
1230264040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 750213 (or 750209 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 22.
The square root of 1230264040 is about 35075.1199570294. The cubic root of 1230264040 is about 1071.5179317807.
Adding to 1230264040 its reverse (404620321), we get a palindrome (1634884361).
The spelling of 1230264040 in words is "one billion, two hundred thirty million, two hundred sixty-four thousand, forty".
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