Base | Representation |
---|---|
bin | 1101000100110111… |
… | …01111001100011001 |
3 | 200010020122102221021 |
4 | 12202123233030121 |
5 | 103334124204411 |
6 | 3120334042441 |
7 | 335652161164 |
oct | 64233571431 |
9 | 20106572837 |
10 | 7020147481 |
11 | 2a82765786 |
12 | 143b049421 |
13 | 87b53b529 |
14 | 4a84c2adb |
15 | 2b1498a71 |
hex | 1a26ef319 |
7020147481 has 2 divisors, whose sum is σ = 7020147482. Its totient is φ = 7020147480.
The previous prime is 7020147403. The next prime is 7020147517. The reversal of 7020147481 is 1847410207.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6721376256 + 298771225 = 81984^2 + 17285^2 .
It is a cyclic number.
It is not a de Polignac number, because 7020147481 - 215 = 7020114713 is a prime.
It is a super-2 number, since 2×70201474812 = 98564941309981290722, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (7020147181) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510073740 + 3510073741.
It is an arithmetic number, because the mean of its divisors is an integer number (3510073741).
Almost surely, 27020147481 is an apocalyptic number.
It is an amenable number.
7020147481 is a deficient number, since it is larger than the sum of its proper divisors (1).
7020147481 is an equidigital number, since it uses as much as digits as its factorization.
7020147481 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12544, while the sum is 34.
The square root of 7020147481 is about 83786.3203691390. The cubic root of 7020147481 is about 1914.7646983692.
Adding to 7020147481 its reverse (1847410207), we get a palindrome (8867557688).
The spelling of 7020147481 in words is "seven billion, twenty million, one hundred forty-seven thousand, four hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •