Base | Representation |
---|---|
bin | 1111010000110… |
… | …11000010111011 |
3 | 22220220221211000 |
4 | 13220123002323 |
5 | 230234141201 |
6 | 20412140043 |
7 | 3113203602 |
oct | 750330273 |
9 | 286827730 |
10 | 128037051 |
11 | 6630114a |
12 | 36a67623 |
13 | 206ac18c |
14 | 1300ca39 |
15 | b391d86 |
hex | 7a1b0bb |
128037051 has 8 divisors (see below), whose sum is σ = 189684560. Its totient is φ = 85358016.
The previous prime is 128037017. The next prime is 128037073. The reversal of 128037051 is 150730821.
It is not a de Polignac number, because 128037051 - 223 = 119648443 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4742113 = 128037051 / (1 + 2 + 8 + 0 + 3 + 7 + 0 + 5 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (128037451) 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, 2371030 + ... + 2371083.
It is an arithmetic number, because the mean of its divisors is an integer number (23710570).
Almost surely, 2128037051 is an apocalyptic number.
128037051 is a deficient number, since it is larger than the sum of its proper divisors (61647509).
128037051 is an equidigital number, since it uses as much as digits as its factorization.
128037051 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4742122 (or 4742116 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 27.
The square root of 128037051 is about 11315.3458188427. The cubic root of 128037051 is about 504.0170416573.
Adding to 128037051 its reverse (150730821), we get a palindrome (278767872).
The spelling of 128037051 in words is "one hundred twenty-eight million, thirty-seven thousand, fifty-one".
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