Base | Representation |
---|---|
bin | 1000000111100011… |
… | …0001001101110001 |
3 | 12121212102220112222 |
4 | 2001320301031301 |
5 | 13430330030023 |
6 | 1000122330425 |
7 | 105000256112 |
oct | 20170611561 |
9 | 5555386488 |
10 | 2179142513 |
11 | a19084029 |
12 | 509959a15 |
13 | 28960ab52 |
14 | 1695ac209 |
15 | cb49bcc8 |
hex | 81e31371 |
2179142513 has 2 divisors, whose sum is σ = 2179142514. Its totient is φ = 2179142512.
The previous prime is 2179142453. The next prime is 2179142527. The reversal of 2179142513 is 3152419712.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1863476224 + 315666289 = 43168^2 + 17767^2 .
It is a cyclic number.
It is not a de Polignac number, because 2179142513 - 214 = 2179126129 is a prime.
It is a super-3 number, since 3×21791425133 (a number of 29 digits) contains 333 as substring.
It is not a weakly prime, because it can be changed into another prime (2179142533) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089571256 + 1089571257.
It is an arithmetic number, because the mean of its divisors is an integer number (1089571257).
Almost surely, 22179142513 is an apocalyptic number.
It is an amenable number.
2179142513 is a deficient number, since it is larger than the sum of its proper divisors (1).
2179142513 is an equidigital number, since it uses as much as digits as its factorization.
2179142513 is an evil number, because the sum of its binary digits is even.
The product of its digits is 15120, while the sum is 35.
The square root of 2179142513 is about 46681.2865396831. The cubic root of 2179142513 is about 1296.4682269649.
The spelling of 2179142513 in words is "two billion, one hundred seventy-nine million, one hundred forty-two thousand, five hundred thirteen".
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