Base | Representation |
---|---|
bin | 1010011010011… |
… | …00100000111000 |
3 | 20002100121002201 |
4 | 11031030200320 |
5 | 134330021313 |
6 | 12400035544 |
7 | 2110264516 |
oct | 515144070 |
9 | 202317081 |
10 | 87345208 |
11 | 45338825 |
12 | 25302bb4 |
13 | 15132772 |
14 | b8594b6 |
15 | 7a050dd |
hex | 534c838 |
87345208 has 8 divisors (see below), whose sum is σ = 163772280. Its totient is φ = 43672600.
The previous prime is 87345199. The next prime is 87345217. The reversal of 87345208 is 80254378.
It is an interprime number because it is at equal distance from previous prime (87345199) and next prime (87345217).
It is a tau number, because it is divible by the number of its divisors (8).
It is a congruent number.
It is an unprimeable number.
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 as a sum of consecutive naturals, namely, 5459068 + ... + 5459083.
It is an arithmetic number, because the mean of its divisors is an integer number (20471535).
Almost surely, 287345208 is an apocalyptic number.
It is an amenable number.
87345208 is a deficient number, since it is larger than the sum of its proper divisors (76427072).
87345208 is a wasteful number, since it uses less digits than its factorization.
87345208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10918157 (or 10918153 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 37.
The square root of 87345208 is about 9345.8658239887. The cubic root of 87345208 is about 443.6900550382.
The spelling of 87345208 in words is "eighty-seven million, three hundred forty-five thousand, two hundred eight".
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