Base | Representation |
---|---|
bin | 1100110000101111110001… |
… | …11011101100001110110101 |
3 | 10200100211000111112211122100 |
4 | 12120113320323230032311 |
5 | 12134241412110221010 |
6 | 135404015521052313 |
7 | 5624333126002626 |
oct | 630277073541665 |
9 | 120324014484570 |
10 | 28063197742005 |
11 | 8a3a598579218 |
12 | 3192a04187099 |
13 | 128746ac92bba |
14 | 6d03a1d4ba4d |
15 | 339ec51532c0 |
hex | 1985f8eec3b5 |
28063197742005 has 48 divisors (see below), whose sum is σ = 51504838407360. Its totient is φ = 14086456088064.
The previous prime is 28063197741991. The next prime is 28063197742009. The reversal of 28063197742005 is 50024779136082.
It is a happy number.
28063197742005 is a `hidden beast` number, since 2 + 80 + 63 + 19 + 77 + 420 + 0 + 5 = 666.
It is not a de Polignac number, because 28063197742005 - 24 = 28063197741989 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28063197742009) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85641166 + ... + 85968224.
It is an arithmetic number, because the mean of its divisors is an integer number (1073017466820).
It is a 1-persistent number, because it is pandigital, but 2⋅28063197742005 = 56126395484010 is not.
Almost surely, 228063197742005 is an apocalyptic number.
It is an amenable number.
28063197742005 is a deficient number, since it is larger than the sum of its proper divisors (23441640665355).
28063197742005 is a wasteful number, since it uses less digits than its factorization.
28063197742005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 439250 (or 439247 counting only the distinct ones).
The product of its (nonzero) digits is 5080320, while the sum is 54.
The spelling of 28063197742005 in words is "twenty-eight trillion, sixty-three billion, one hundred ninety-seven million, seven hundred forty-two thousand, five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •