Base | Representation |
---|---|
bin | 1010011010101… |
… | …10011001100110 |
3 | 20002102122122111 |
4 | 11031112121212 |
5 | 134332320302 |
6 | 12400551234 |
7 | 2110523545 |
oct | 515263146 |
9 | 202378574 |
10 | 87385702 |
11 | 45366198 |
12 | 2532251a |
13 | 15148021 |
14 | b86a15c |
15 | 7a120d7 |
hex | 5356666 |
87385702 has 4 divisors (see below), whose sum is σ = 131078556. Its totient is φ = 43692850.
The previous prime is 87385699. The next prime is 87385703. The reversal of 87385702 is 20758378.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20758378 = 2 ⋅10379189.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87385703) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21846424 + ... + 21846427.
It is an arithmetic number, because the mean of its divisors is an integer number (32769639).
Almost surely, 287385702 is an apocalyptic number.
87385702 is a deficient number, since it is larger than the sum of its proper divisors (43692854).
87385702 is a wasteful number, since it uses less digits than its factorization.
87385702 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43692853.
The product of its (nonzero) digits is 94080, while the sum is 40.
The square root of 87385702 is about 9348.0319853967. The cubic root of 87385702 is about 443.7586106377.
The spelling of 87385702 in words is "eighty-seven million, three hundred eighty-five thousand, seven hundred two".
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