Base | Representation |
---|---|
bin | 1010011000010… |
… | …11110100110111 |
3 | 20001212010122100 |
4 | 11030023310313 |
5 | 134243031442 |
6 | 12350233143 |
7 | 2105112162 |
oct | 514136467 |
9 | 201763570 |
10 | 87080247 |
11 | 45177751 |
12 | 251b57b3 |
13 | 1506bc97 |
14 | b7caad9 |
15 | 79a184c |
hex | 530bd37 |
87080247 has 12 divisors (see below), whose sum is σ = 125966880. Its totient is φ = 57968448.
The previous prime is 87080233. The next prime is 87080261. The reversal of 87080247 is 74208078.
It is an interprime number because it is at equal distance from previous prime (87080233) and next prime (87080261).
It is not a de Polignac number, because 87080247 - 212 = 87076151 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87080267) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258 + ... + 13199.
It is an arithmetic number, because the mean of its divisors is an integer number (10497240).
Almost surely, 287080247 is an apocalyptic number.
87080247 is a deficient number, since it is larger than the sum of its proper divisors (38886633).
87080247 is a wasteful number, since it uses less digits than its factorization.
87080247 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14182 (or 14179 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 36.
The square root of 87080247 is about 9331.6797523276. The cubic root of 87080247 is about 443.2409571918.
The spelling of 87080247 in words is "eighty-seven million, eighty thousand, two hundred forty-seven".
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