Base | Representation |
---|---|
bin | 1010011110111… |
… | …11101011101000 |
3 | 20010111012222122 |
4 | 11033133223220 |
5 | 140003314013 |
6 | 12421010412 |
7 | 2115355121 |
oct | 517375350 |
9 | 203435878 |
10 | 87948008 |
11 | 4570a705 |
12 | 25553a08 |
13 | 152b3c55 |
14 | b975048 |
15 | 7ac3a08 |
hex | 53dfae8 |
87948008 has 32 divisors (see below), whose sum is σ = 167961600. Its totient is φ = 43166592.
The previous prime is 87947969. The next prime is 87948011. The reversal of 87948008 is 80084978.
It is a happy number.
It is a super-2 number, since 2×879480082 = 15469704222336128, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 87948008.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108308 + ... + 109116.
It is an arithmetic number, because the mean of its divisors is an integer number (5248800).
Almost surely, 287948008 is an apocalyptic number.
It is an amenable number.
87948008 is a deficient number, since it is larger than the sum of its proper divisors (80013592).
87948008 is a wasteful number, since it uses less digits than its factorization.
87948008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1049 (or 1045 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 44.
The square root of 87948008 is about 9378.0599272984. The cubic root of 87948008 is about 444.7084029985.
The spelling of 87948008 in words is "eighty-seven million, nine hundred forty-eight thousand, eight".
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