Base | Representation |
---|---|
bin | 1010011100111… |
… | …01011000001001 |
3 | 20002222102110000 |
4 | 11032131120021 |
5 | 134421121200 |
6 | 12411113213 |
7 | 2113144254 |
oct | 516353011 |
9 | 202872400 |
10 | 87676425 |
11 | 45544661 |
12 | 25442809 |
13 | 1521a455 |
14 | b90409b |
15 | 7a6d300 |
hex | 539d609 |
87676425 has 60 divisors (see below), whose sum is σ = 168119820. Its totient is φ = 45118080.
The previous prime is 87676417. The next prime is 87676427. The reversal of 87676425 is 52467678.
87676425 is nontrivially palindromic in base 14.
It can be written as a sum of positive squares in 6 ways, for example, as 571536 + 87104889 = 756^2 + 9333^2 .
It is not a de Polignac number, because 87676425 - 23 = 87676417 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (87676427) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 57979 + ... + 59471.
It is an arithmetic number, because the mean of its divisors is an integer number (2801997).
Almost surely, 287676425 is an apocalyptic number.
It is an amenable number.
87676425 is a deficient number, since it is larger than the sum of its proper divisors (80443395).
87676425 is a wasteful number, since it uses less digits than its factorization.
With its successor (87676426) it forms an eRAP, since the sums of their prime factors are consecutive (1544 and 1545).
87676425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1544 (or 1530 counting only the distinct ones).
The product of its digits is 564480, while the sum is 45.
The square root of 87676425 is about 9363.5690310907. The cubic root of 87676425 is about 444.2501785829.
The spelling of 87676425 in words is "eighty-seven million, six hundred seventy-six thousand, four hundred twenty-five".
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