Base | Representation |
---|---|
bin | 1010011010100… |
… | …00000110100101 |
3 | 20002101100021012 |
4 | 11031100012211 |
5 | 134331004114 |
6 | 12400232005 |
7 | 2110355420 |
oct | 515200645 |
9 | 202340235 |
10 | 87359909 |
11 | 4534887a |
12 | 2530b605 |
13 | 15139370 |
14 | b8609b7 |
15 | 7a0963e |
hex | 53501a5 |
87359909 has 16 divisors (see below), whose sum is σ = 107759232. Its totient is φ = 68966208.
The previous prime is 87359897. The next prime is 87359917. The reversal of 87359909 is 90995378.
It is a cyclic number.
It is not a de Polignac number, because 87359909 - 28 = 87359653 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87359969) 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 15 ways as a sum of consecutive naturals, for example, 57767 + ... + 59259.
It is an arithmetic number, because the mean of its divisors is an integer number (6734952).
Almost surely, 287359909 is an apocalyptic number.
It is an amenable number.
87359909 is a deficient number, since it is larger than the sum of its proper divisors (20399323).
87359909 is a wasteful number, since it uses less digits than its factorization.
87359909 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2156.
The product of its (nonzero) digits is 612360, while the sum is 50.
The square root of 87359909 is about 9346.6522883865. The cubic root of 87359909 is about 443.7149460110.
The spelling of 87359909 in words is "eighty-seven million, three hundred fifty-nine thousand, nine hundred nine".
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