Base | Representation |
---|---|
bin | 1010011001010… |
… | …00001000110011 |
3 | 20002002000201022 |
4 | 11030220020303 |
5 | 134310234321 |
6 | 12352530055 |
7 | 2106104234 |
oct | 514501063 |
9 | 202060638 |
10 | 87196211 |
11 | 45246893 |
12 | 2525092b |
13 | 150ac9bb |
14 | b81b08b |
15 | 79c5dab |
hex | 5328233 |
87196211 has 8 divisors (see below), whose sum is σ = 90553344. Its totient is φ = 83873160.
The previous prime is 87196201. The next prime is 87196223. The reversal of 87196211 is 11269178.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-87196211 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87196201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245 + ... + 13598.
It is an arithmetic number, because the mean of its divisors is an integer number (11319168).
Almost surely, 287196211 is an apocalyptic number.
87196211 is a deficient number, since it is larger than the sum of its proper divisors (3357133).
87196211 is a wasteful number, since it uses less digits than its factorization.
87196211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17041.
The product of its digits is 6048, while the sum is 35.
The square root of 87196211 is about 9337.8911430794. The cubic root of 87196211 is about 443.4376232811.
The spelling of 87196211 in words is "eighty-seven million, one hundred ninety-six thousand, two hundred eleven".
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