Base | Representation |
---|---|
bin | 11100111000011… |
… | …10011010010001 |
3 | 121212220002210100 |
4 | 32130032122101 |
5 | 444010430311 |
6 | 40012523013 |
7 | 6001226631 |
oct | 1634163221 |
9 | 555802710 |
10 | 242280081 |
11 | 11484067a |
12 | 69180469 |
13 | 3b26b8c4 |
14 | 2426a6c1 |
15 | 1640ba56 |
hex | e70e691 |
242280081 has 12 divisors (see below), whose sum is σ = 350218960. Its totient is φ = 161400600.
The previous prime is 242280079. The next prime is 242280083. The reversal of 242280081 is 180082242.
242280081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (242280079) and next prime (242280083).
It is not a de Polignac number, because 242280081 - 21 = 242280079 is a prime.
It is a super-2 number, since 2×2422800812 = 117399275298733122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (242280083) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3906 + ... + 22356.
Almost surely, 2242280081 is an apocalyptic number.
It is an amenable number.
242280081 is a deficient number, since it is larger than the sum of its proper divisors (107938879).
242280081 is a wasteful number, since it uses less digits than its factorization.
242280081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19916 (or 19913 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 27.
The square root of 242280081 is about 15565.3487272210. The cubic root of 242280081 is about 623.4082855400.
The spelling of 242280081 in words is "two hundred forty-two million, two hundred eighty thousand, eighty-one".
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