Base | Representation |
---|---|
bin | 10100000000001010110… |
… | …10000011001101111001 |
3 | 2102201000002212222110020 |
4 | 22000011122003031321 |
5 | 42230030040413421 |
6 | 1243422401041053 |
7 | 100440401131662 |
oct | 12000532031571 |
9 | 2381002788406 |
10 | 687285482361 |
11 | 245526812385 |
12 | b124a626189 |
13 | 4ca7028211a |
14 | 2539c850369 |
15 | 12d27c47dc6 |
hex | a005683379 |
687285482361 has 48 divisors (see below), whose sum is σ = 957475194624. Its totient is φ = 438480864000.
The previous prime is 687285482327. The next prime is 687285482393. The reversal of 687285482361 is 163284582786.
It is not a de Polignac number, because 687285482361 - 215 = 687285449593 is a prime.
It is a super-2 number, since 2×6872854823612 (a number of 24 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 687285482295 and 687285482304.
It is not an unprimeable number, because it can be changed into a prime (687285482761) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107033931 + ... + 107040351.
It is an arithmetic number, because the mean of its divisors is an integer number (19947399888).
Almost surely, 2687285482361 is an apocalyptic number.
It is an amenable number.
687285482361 is a deficient number, since it is larger than the sum of its proper divisors (270189712263).
687285482361 is a wasteful number, since it uses less digits than its factorization.
687285482361 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6894 (or 6863 counting only the distinct ones).
The product of its digits is 30965760, while the sum is 60.
The spelling of 687285482361 in words is "six hundred eighty-seven billion, two hundred eighty-five million, four hundred eighty-two thousand, three hundred sixty-one".
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