Base | Representation |
---|---|
bin | 11010001110111100… |
… | …011010110110011110 |
3 | 2200201002002000112010 |
4 | 122032330122312132 |
5 | 430142002211240 |
6 | 20535030052050 |
7 | 2015013052410 |
oct | 321674326636 |
9 | 80632060463 |
10 | 28168007070 |
11 | 10a45118695 |
12 | 55614aa026 |
13 | 286b982c08 |
14 | 15130049b0 |
15 | aecda1280 |
hex | 68ef1ad9e |
28168007070 has 64 divisors (see below), whose sum is σ = 77509426176. Its totient is φ = 6417684480.
The previous prime is 28168007069. The next prime is 28168007177. The reversal of 28168007070 is 7070086182.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150339 + ... + 280958.
It is an arithmetic number, because the mean of its divisors is an integer number (1211084784).
Almost surely, 228168007070 is an apocalyptic number.
28168007070 is an abundant number, since it is smaller than the sum of its proper divisors (49341419106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28168007070 is a wasteful number, since it uses less digits than its factorization.
28168007070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 431625.
The product of its (nonzero) digits is 37632, while the sum is 39.
The spelling of 28168007070 in words is "twenty-eight billion, one hundred sixty-eight million, seven thousand, seventy".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •