Base | Representation |
---|---|
bin | 1010011110011… |
… | …10010110110101 |
3 | 20010100121122101 |
4 | 11033032112311 |
5 | 134444031140 |
6 | 12415302101 |
7 | 2114641204 |
oct | 517162665 |
9 | 203317571 |
10 | 87877045 |
11 | 45671363 |
12 | 2551a931 |
13 | 1528a869 |
14 | b95723b |
15 | 7aac99a |
hex | 53ce5b5 |
87877045 has 8 divisors (see below), whose sum is σ = 105725880. Its totient is φ = 70119360.
The previous prime is 87877039. The next prime is 87877057. The reversal of 87877045 is 54077878.
It can be written as a sum of positive squares in 4 ways, for example, as 996004 + 86881041 = 998^2 + 9321^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87877045 - 23 = 87877037 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 87876986 and 87877004.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20646 + ... + 24535.
It is an arithmetic number, because the mean of its divisors is an integer number (13215735).
Almost surely, 287877045 is an apocalyptic number.
It is an amenable number.
87877045 is a deficient number, since it is larger than the sum of its proper divisors (17848835).
87877045 is a wasteful number, since it uses less digits than its factorization.
87877045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45575.
The product of its (nonzero) digits is 439040, while the sum is 46.
The square root of 87877045 is about 9374.2757053545. The cubic root of 87877045 is about 444.5887628662.
The spelling of 87877045 in words is "eighty-seven million, eight hundred seventy-seven thousand, forty-five".
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