Base | Representation |
---|---|
bin | 11000110011110… |
… | …00011001100000 |
3 | 112111121010220020 |
4 | 30121320121200 |
5 | 411234024300 |
6 | 32352313440 |
7 | 5104626123 |
oct | 1431703140 |
9 | 474533806 |
10 | 208111200 |
11 | a7523030 |
12 | 59842880 |
13 | 3416722b |
14 | 1d8d43ba |
15 | 1340c8a0 |
hex | c678660 |
208111200 has 144 divisors (see below), whose sum is σ = 739077696. Its totient is φ = 50444800.
The previous prime is 208111151. The next prime is 208111243. The reversal of 208111200 is 2111802.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a zygodrome in base 2.
It is a self number, because there is not a number n which added to its sum of digits gives 208111200.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22459 + ... + 30341.
It is an arithmetic number, because the mean of its divisors is an integer number (5132484).
Almost surely, 2208111200 is an apocalyptic number.
208111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 208111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369538848).
208111200 is an abundant number, since it is smaller than the sum of its proper divisors (530966496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208111200 is a wasteful number, since it uses less digits than its factorization.
208111200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7917 (or 7904 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
The square root of 208111200 is about 14426.0597530996. The cubic root of 208111200 is about 592.6047812694.
The spelling of 208111200 in words is "two hundred eight million, one hundred eleven thousand, two hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •