Base | Representation |
---|---|
bin | 1001010100111… |
… | …01110110001000 |
3 | 12110020001200202 |
4 | 10222131312020 |
5 | 130012204120 |
6 | 11432551332 |
7 | 1640016224 |
oct | 452356610 |
9 | 173201622 |
10 | 78241160 |
11 | 4018a818 |
12 | 22252548 |
13 | 1329595a |
14 | a569784 |
15 | 6d07875 |
hex | 4a9dd88 |
78241160 has 16 divisors (see below), whose sum is σ = 176042700. Its totient is φ = 31296448.
The previous prime is 78241151. The next prime is 78241171. The reversal of 78241160 is 6114287.
It can be written as a sum of positive squares in 2 ways, for example, as 74684164 + 3556996 = 8642^2 + 1886^2 .
It is a super-2 number, since 2×782411602 = 12243358236291200, which contains 22 as substring.
It is an unprimeable number.
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 in 3 ways as a sum of consecutive naturals, for example, 977975 + ... + 978054.
Almost surely, 278241160 is an apocalyptic number.
It is an amenable number.
78241160 is an abundant number, since it is smaller than the sum of its proper divisors (97801540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78241160 is a wasteful number, since it uses less digits than its factorization.
78241160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1956040 (or 1956036 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 29.
The square root of 78241160 is about 8845.4033260219. The cubic root of 78241160 is about 427.7057546079.
The spelling of 78241160 in words is "seventy-eight million, two hundred forty-one thousand, one hundred sixty".
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