Base | Representation |
---|---|
bin | 110111000010… |
… | …1011011101111 |
3 | 2000022010212100 |
4 | 1232011123233 |
5 | 24341424340 |
6 | 2510310143 |
7 | 500201250 |
oct | 156053357 |
9 | 60263770 |
10 | 28858095 |
11 | 15320572 |
12 | 97b8353 |
13 | 5c952c6 |
14 | 3b92b27 |
15 | 2800830 |
hex | 1b856ef |
28858095 has 72 divisors (see below), whose sum is σ = 60918624. Its totient is φ = 12377088.
The previous prime is 28858087. The next prime is 28858111. The reversal of 28858095 is 59085882.
It is not a de Polignac number, because 28858095 - 23 = 28858087 is a prime.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 28858095.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 90877 + ... + 91193.
It is an arithmetic number, because the mean of its divisors is an integer number (846092).
Almost surely, 228858095 is an apocalyptic number.
28858095 is an abundant number, since it is smaller than the sum of its proper divisors (32060529).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28858095 is a wasteful number, since it uses less digits than its factorization.
28858095 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 369 (or 349 counting only the distinct ones).
The product of its (nonzero) digits is 230400, while the sum is 45.
The square root of 28858095 is about 5371.9731011985. The cubic root of 28858095 is about 306.7297398359.
The spelling of 28858095 in words is "twenty-eight million, eight hundred fifty-eight thousand, ninety-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •