Base | Representation |
---|---|
bin | 11010001011010101… |
… | …101111110100000111 |
3 | 2200112212021212002202 |
4 | 122023111233310013 |
5 | 430031012201141 |
6 | 20525030025115 |
7 | 2013350061653 |
oct | 321325576407 |
9 | 80485255082 |
10 | 28107537671 |
11 | 10a13a77084 |
12 | 55451a819b |
13 | 285c2a03c5 |
14 | 1508d83a63 |
15 | ae790949b |
hex | 68b56fd07 |
28107537671 has 8 divisors (see below), whose sum is σ = 28215098784. Its totient is φ = 28000162080.
The previous prime is 28107537607. The next prime is 28107537683. The reversal of 28107537671 is 17673570182.
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 28107537671 - 26 = 28107537607 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28107536671) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261086 + ... + 352676.
It is an arithmetic number, because the mean of its divisors is an integer number (3526887348).
Almost surely, 228107537671 is an apocalyptic number.
28107537671 is a deficient number, since it is larger than the sum of its proper divisors (107561113).
28107537671 is an equidigital number, since it uses as much as digits as its factorization.
28107537671 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92761.
The product of its (nonzero) digits is 493920, while the sum is 47.
The spelling of 28107537671 in words is "twenty-eight billion, one hundred seven million, five hundred thirty-seven thousand, six hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •