Base | Representation |
---|---|
bin | 1010011000010… |
… | …01100010010010 |
3 | 20001211122202220 |
4 | 11030021202102 |
5 | 134242231431 |
6 | 12350121510 |
7 | 2105042631 |
oct | 514114222 |
9 | 201748686 |
10 | 87070866 |
11 | 451706a3 |
12 | 251b0296 |
13 | 1506792c |
14 | b7c7518 |
15 | 799db96 |
hex | 5309892 |
87070866 has 8 divisors (see below), whose sum is σ = 174141744. Its totient is φ = 29023620.
The previous prime is 87070861. The next prime is 87070873. The reversal of 87070866 is 66807078.
It is a sphenic number, since it is the product of 3 distinct primes.
87070866 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (87070861) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7255900 + ... + 7255911.
It is an arithmetic number, because the mean of its divisors is an integer number (21767718).
Almost surely, 287070866 is an apocalyptic number.
87070866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87070866 is a wasteful number, since it uses less digits than its factorization.
87070866 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14511816.
The product of its (nonzero) digits is 112896, while the sum is 42.
The square root of 87070866 is about 9331.1770961653. The cubic root of 87070866 is about 443.2250401004.
The spelling of 87070866 in words is "eighty-seven million, seventy thousand, eight hundred sixty-six".
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