Base | Representation |
---|---|
bin | 10001001101000… |
… | …000000111010101 |
3 | 202010002110121011 |
4 | 101031000013111 |
5 | 1042341333023 |
6 | 44350052221 |
7 | 10103144452 |
oct | 2115000725 |
9 | 663073534 |
10 | 288621013 |
11 | 138a1226a |
12 | 807aa071 |
13 | 47a45685 |
14 | 2a490829 |
15 | 1a51250d |
hex | 113401d5 |
288621013 has 2 divisors, whose sum is σ = 288621014. Its totient is φ = 288621012.
The previous prime is 288620993. The next prime is 288621071. The reversal of 288621013 is 310126882.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 156325009 + 132296004 = 12503^2 + 11502^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-288621013 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (288621413) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144310506 + 144310507.
It is an arithmetic number, because the mean of its divisors is an integer number (144310507).
Almost surely, 2288621013 is an apocalyptic number.
It is an amenable number.
288621013 is a deficient number, since it is larger than the sum of its proper divisors (1).
288621013 is an equidigital number, since it uses as much as digits as its factorization.
288621013 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4608, while the sum is 31.
The square root of 288621013 is about 16988.8496667667. The cubic root of 288621013 is about 660.8597709950.
Adding to 288621013 its reverse (310126882), we get a palindrome (598747895).
The spelling of 288621013 in words is "two hundred eighty-eight million, six hundred twenty-one thousand, thirteen".
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