Base | Representation |
---|---|
bin | 11101101001101… |
… | …11000100100001 |
3 | 122100001012111112 |
4 | 32310313010201 |
5 | 1002134104311 |
6 | 40403153105 |
7 | 6110144624 |
oct | 1664670441 |
9 | 570035445 |
10 | 248738081 |
11 | 118451669 |
12 | 6b375795 |
13 | 3c6c01c7 |
14 | 2506bdbb |
15 | 16c8528b |
hex | ed37121 |
248738081 has 2 divisors, whose sum is σ = 248738082. Its totient is φ = 248738080.
The previous prime is 248738059. The next prime is 248738117. The reversal of 248738081 is 180837842.
248738081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 208542481 + 40195600 = 14441^2 + 6340^2 .
It is a cyclic number.
It is not a de Polignac number, because 248738081 - 210 = 248737057 is a prime.
It is a super-2 number, since 2×2487380812 = 123741265879125122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (248738011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124369040 + 124369041.
It is an arithmetic number, because the mean of its divisors is an integer number (124369041).
Almost surely, 2248738081 is an apocalyptic number.
It is an amenable number.
248738081 is a deficient number, since it is larger than the sum of its proper divisors (1).
248738081 is an equidigital number, since it uses as much as digits as its factorization.
248738081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 86016, while the sum is 41.
The square root of 248738081 is about 15771.4324333587. The cubic root of 248738081 is about 628.8987909679.
The spelling of 248738081 in words is "two hundred forty-eight million, seven hundred thirty-eight thousand, eighty-one".
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