Base | Representation |
---|---|
bin | 11111011100110… |
… | …01101001001000 |
3 | 200101102112121100 |
4 | 33232121221020 |
5 | 1020014300041 |
6 | 42102341400 |
7 | 6352310022 |
oct | 1756315110 |
9 | 611375540 |
10 | 263821896 |
11 | 125a14328 |
12 | 7442a860 |
13 | 42871a40 |
14 | 27077012 |
15 | 182646b6 |
hex | fb99a48 |
263821896 has 96 divisors (see below), whose sum is σ = 772382520. Its totient is φ = 80870400.
The previous prime is 263821847. The next prime is 263821913. The reversal of 263821896 is 698128362.
263821896 is a `hidden beast` number, since 2 + 638 + 2 + 1 + 8 + 9 + 6 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 141276996 + 122544900 = 11886^2 + 11070^2 .
It is a nude number because it is divisible by every one of its digits.
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, 487386 + ... + 487926.
Almost surely, 2263821896 is an apocalyptic number.
263821896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
263821896 is the 9378-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 263821896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386191260).
263821896 is an abundant number, since it is smaller than the sum of its proper divisors (508560624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
263821896 is a wasteful number, since it uses less digits than its factorization.
263821896 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1087 (or 1080 counting only the distinct ones).
The product of its digits is 248832, while the sum is 45.
The square root of 263821896 is about 16242.5951128507. The cubic root of 263821896 is about 641.3625722593.
The spelling of 263821896 in words is "two hundred sixty-three million, eight hundred twenty-one thousand, eight hundred ninety-six".
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