Base | Representation |
---|---|
bin | 11010001000101011… |
… | …001000101000101111 |
3 | 2200102202010121000001 |
4 | 122020223020220233 |
5 | 424433040001334 |
6 | 20520351245131 |
7 | 2012264654344 |
oct | 321053105057 |
9 | 80382117001 |
10 | 28062812719 |
11 | 109a07a9607 |
12 | 55322197a7 |
13 | 2852c41036 |
14 | 15030607cb |
15 | ae3a22714 |
hex | 688ac8a2f |
28062812719 has 2 divisors, whose sum is σ = 28062812720. Its totient is φ = 28062812718.
The previous prime is 28062812707. The next prime is 28062812737. The reversal of 28062812719 is 91721826082.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-28062812719 is a prime.
It is a super-2 number, since 2×280628127192 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28062812419) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14031406359 + 14031406360.
It is an arithmetic number, because the mean of its divisors is an integer number (14031406360).
Almost surely, 228062812719 is an apocalyptic number.
28062812719 is a deficient number, since it is larger than the sum of its proper divisors (1).
28062812719 is an equidigital number, since it uses as much as digits as its factorization.
28062812719 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 193536, while the sum is 46.
The spelling of 28062812719 in words is "twenty-eight billion, sixty-two million, eight hundred twelve thousand, seven hundred nineteen".
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