Base | Representation |
---|---|
bin | 1100000111110100011… |
… | …1111110010000001000 |
3 | 201220112211112220012112 |
4 | 3001331013332100020 |
5 | 11403002431002300 |
6 | 235401112401452 |
7 | 21021551002034 |
oct | 3017507762010 |
9 | 656484486175 |
10 | 208257672200 |
11 | 8035a032586 |
12 | 344410a6288 |
13 | 1683c05cb46 |
14 | a118aa11c4 |
15 | 563d3bbe35 |
hex | 307d1fe408 |
208257672200 has 180 divisors, whose sum is σ = 514642592295. Its totient is φ = 78374947200.
The previous prime is 208257672193. The next prime is 208257672239. The reversal of 208257672200 is 2276752802.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 5 ways, for example, as 323496196 + 207934176004 = 17986^2 + 455998^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=322690.
It is an unprimeable number.
It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3414060170 + ... + 3414060230.
Almost surely, 2208257672200 is an apocalyptic number.
208257672200 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 208257672200
208257672200 is an abundant number, since it is smaller than the sum of its proper divisors (306384920095).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208257672200 is an frugal number, since it uses more digits than its factorization.
208257672200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 230 (or 91 counting only the distinct ones).
The product of its (nonzero) digits is 188160, while the sum is 41.
The spelling of 208257672200 in words is "two hundred eight billion, two hundred fifty-seven million, six hundred seventy-two thousand, two hundred".
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