Base | Representation |
---|---|
bin | 1010011110111… |
… | …01100101000011 |
3 | 20010110210011122 |
4 | 11033131211003 |
5 | 140003030040 |
6 | 12420502455 |
7 | 2115321035 |
oct | 517354503 |
9 | 203423148 |
10 | 87939395 |
11 | 45704195 |
12 | 2554aa2b |
13 | 152b005b |
14 | b971c55 |
15 | 7ac11b5 |
hex | 53dd943 |
87939395 has 8 divisors (see below), whose sum is σ = 105637920. Its totient is φ = 70277760.
The previous prime is 87939389. The next prime is 87939407. The reversal of 87939395 is 59393978.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-87939395 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 13760.
It is an arithmetic number, because the mean of its divisors is an integer number (13204740).
Almost surely, 287939395 is an apocalyptic number.
87939395 is a deficient number, since it is larger than the sum of its proper divisors (17698525).
87939395 is a wasteful number, since it uses less digits than its factorization.
87939395 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18445.
The product of its digits is 1837080, while the sum is 53.
The square root of 87939395 is about 9377.6007059375. The cubic root of 87939395 is about 444.6938853359.
The spelling of 87939395 in words is "eighty-seven million, nine hundred thirty-nine thousand, three hundred ninety-five".
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