Base | Representation |
---|---|
bin | 1101001001110110… |
… | …11000101000110000 |
3 | 200020011101200020020 |
4 | 12210323120220300 |
5 | 103430332420003 |
6 | 3124431043440 |
7 | 340000664553 |
oct | 64473305060 |
9 | 20204350206 |
10 | 7061998128 |
11 | 2aa434a799 |
12 | 1451070580 |
13 | 887102523 |
14 | 4adc9869a |
15 | 2b4eb3d53 |
hex | 1a4ed8a30 |
7061998128 has 40 divisors (see below), whose sum is σ = 19203681600. Its totient is φ = 2230104384.
The previous prime is 7061998123. The next prime is 7061998129. The reversal of 7061998128 is 8218991607.
It is not an unprimeable number, because it can be changed into a prime (7061998123) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3870798 + ... + 3872621.
It is an arithmetic number, because the mean of its divisors is an integer number (480092040).
Almost surely, 27061998128 is an apocalyptic number.
It is an amenable number.
7061998128 is an abundant number, since it is smaller than the sum of its proper divisors (12141683472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7061998128 is a wasteful number, since it uses less digits than its factorization.
7061998128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7743449 (or 7743443 counting only the distinct ones).
The product of its (nonzero) digits is 435456, while the sum is 51.
The square root of 7061998128 is about 84035.6955584947. The cubic root of 7061998128 is about 1918.5621222345.
The spelling of 7061998128 in words is "seven billion, sixty-one million, nine hundred ninety-eight thousand, one hundred twenty-eight".
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