Base | Representation |
---|---|
bin | 11010100111111011… |
… | …111001010100101111 |
3 | 2201210022001022111012 |
4 | 122213323321110233 |
5 | 432021322101033 |
6 | 21044405015435 |
7 | 2031264020243 |
oct | 324773712457 |
9 | 81708038435 |
10 | 28587300143 |
11 | 1113a870796 |
12 | 56599b457b |
13 | 29077bac1c |
14 | 155298c423 |
15 | b24ac6248 |
hex | 6a7ef952f |
28587300143 has 8 divisors (see below), whose sum is σ = 29328882576. Its totient is φ = 27847828800.
The previous prime is 28587300089. The next prime is 28587300169. The reversal of 28587300143 is 34100378582.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28587300143 - 28 = 28587299887 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 28587300143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28587300173) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500321 + ... + 554522.
It is an arithmetic number, because the mean of its divisors is an integer number (3666110322).
Almost surely, 228587300143 is an apocalyptic number.
28587300143 is a deficient number, since it is larger than the sum of its proper divisors (741582433).
28587300143 is a wasteful number, since it uses less digits than its factorization.
28587300143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1055545.
The product of its (nonzero) digits is 161280, while the sum is 41.
The spelling of 28587300143 in words is "twenty-eight billion, five hundred eighty-seven million, three hundred thousand, one hundred forty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •