Base | Representation |
---|---|
bin | 100110011101001… |
… | …1001000000101100 |
3 | 10022221001212000112 |
4 | 1030322121000230 |
5 | 10120314001322 |
6 | 332013115152 |
7 | 43656002600 |
oct | 11472310054 |
9 | 3287055015 |
10 | 1290375212 |
11 | 602423aa5 |
12 | 300188ab8 |
13 | 177448139 |
14 | c3537500 |
15 | 7843d5e2 |
hex | 4ce9902c |
1290375212 has 36 divisors (see below), whose sum is σ = 2669922864. Its totient is φ = 543947040.
The previous prime is 1290375211. The next prime is 1290375221. The reversal of 1290375212 is 2125730921.
It is a super-3 number, since 3×12903752123 (a number of 28 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (1290375211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42008 + ... + 65919.
It is an arithmetic number, because the mean of its divisors is an integer number (74164524).
Almost surely, 21290375212 is an apocalyptic number.
It is an amenable number.
1290375212 is an abundant number, since it is smaller than the sum of its proper divisors (1379547652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1290375212 is a wasteful number, since it uses less digits than its factorization.
1290375212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108006 (or 107997 counting only the distinct ones).
The product of its (nonzero) digits is 7560, while the sum is 32.
The square root of 1290375212 is about 35921.7929953392. The cubic root of 1290375212 is about 1088.6927661140.
The spelling of 1290375212 in words is "one billion, two hundred ninety million, three hundred seventy-five thousand, two hundred twelve".
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