Base | Representation |
---|---|
bin | 1010011100111… |
… | …10110101101101 |
3 | 20002222201122210 |
4 | 11032132311231 |
5 | 134421314123 |
6 | 12411201033 |
7 | 2113200600 |
oct | 516366555 |
9 | 202881583 |
10 | 87682413 |
11 | 45549105 |
12 | 25446179 |
13 | 152200b0 |
14 | b906337 |
15 | 7a6ee93 |
hex | 539ed6d |
87682413 has 48 divisors (see below), whose sum is σ = 155131200. Its totient is φ = 43513344.
The previous prime is 87682393. The next prime is 87682421. The reversal of 87682413 is 31428678.
It is not a de Polignac number, because 87682413 - 25 = 87682381 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87682453) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31138 + ... + 33836.
It is an arithmetic number, because the mean of its divisors is an integer number (3231900).
Almost surely, 287682413 is an apocalyptic number.
It is an amenable number.
87682413 is a deficient number, since it is larger than the sum of its proper divisors (67448787).
87682413 is a wasteful number, since it uses less digits than its factorization.
87682413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2746 (or 2739 counting only the distinct ones).
The product of its digits is 64512, while the sum is 39.
The square root of 87682413 is about 9363.8887755035. Note that the first 3 decimals coincide. The cubic root of 87682413 is about 444.2602919420.
The spelling of 87682413 in words is "eighty-seven million, six hundred eighty-two thousand, four hundred thirteen".
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