Base | Representation |
---|---|
bin | 1010100000000… |
… | …00001110000101 |
3 | 20010201222210211 |
4 | 11100000032011 |
5 | 140022100120 |
6 | 12423515421 |
7 | 2116451515 |
oct | 520001605 |
9 | 203658724 |
10 | 88081285 |
11 | 457a0856 |
12 | 255b8b71 |
13 | 1532c806 |
14 | b9ab845 |
15 | 7aed25a |
hex | 5400385 |
88081285 has 4 divisors (see below), whose sum is σ = 105697548. Its totient is φ = 70465024.
The previous prime is 88081249. The next prime is 88081307. The reversal of 88081285 is 58218088.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 55442916 + 32638369 = 7446^2 + 5713^2 .
It is a cyclic number.
It is not a de Polignac number, because 88081285 - 213 = 88073093 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8808124 + ... + 8808133.
It is an arithmetic number, because the mean of its divisors is an integer number (26424387).
Almost surely, 288081285 is an apocalyptic number.
It is an amenable number.
88081285 is a deficient number, since it is larger than the sum of its proper divisors (17616263).
88081285 is a wasteful number, since it uses less digits than its factorization.
88081285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17616262.
The product of its (nonzero) digits is 40960, while the sum is 40.
The square root of 88081285 is about 9385.1630246896. The cubic root of 88081285 is about 444.9329276515.
The spelling of 88081285 in words is "eighty-eight million, eighty-one thousand, two hundred eighty-five".
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