Base | Representation |
---|---|
bin | 1010011001011… |
… | …10110000100101 |
3 | 20002010101220211 |
4 | 11030232300211 |
5 | 134312121313 |
6 | 12353255421 |
7 | 2106246301 |
oct | 514566045 |
9 | 202111824 |
10 | 87223333 |
11 | 452651aa |
12 | 25264571 |
13 | 150bc152 |
14 | b826d01 |
15 | 79cde3d |
hex | 532ec25 |
87223333 has 2 divisors, whose sum is σ = 87223334. Its totient is φ = 87223332.
The previous prime is 87223309. The next prime is 87223361. The reversal of 87223333 is 33332278.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 59954049 + 27269284 = 7743^2 + 5222^2 .
It is a cyclic number.
It is not a de Polignac number, because 87223333 - 217 = 87092261 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 87223295 and 87223304.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87223303) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43611666 + 43611667.
It is an arithmetic number, because the mean of its divisors is an integer number (43611667).
Almost surely, 287223333 is an apocalyptic number.
It is an amenable number.
87223333 is a deficient number, since it is larger than the sum of its proper divisors (1).
87223333 is an equidigital number, since it uses as much as digits as its factorization.
87223333 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 18144, while the sum is 31.
The square root of 87223333 is about 9339.3432852637. The cubic root of 87223333 is about 443.4835949594.
The spelling of 87223333 in words is "eighty-seven million, two hundred twenty-three thousand, three hundred thirty-three".
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