Base | Representation |
---|---|
bin | 10000001011011100… |
… | …11011000010110101 |
3 | 211102100020000100220 |
4 | 20011232123002311 |
5 | 120242103140234 |
6 | 3553522524553 |
7 | 425150461131 |
oct | 100556330265 |
9 | 24370200326 |
10 | 8685990069 |
11 | 3758018999 |
12 | 1824b06759 |
13 | a856b86c3 |
14 | 5c58363c1 |
15 | 35c851a49 |
hex | 205b9b0b5 |
8685990069 has 8 divisors (see below), whose sum is σ = 11583130272. Its totient is φ = 5789754960.
The previous prime is 8685990059. The next prime is 8685990077. The reversal of 8685990069 is 9600995868.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 8685990069 - 213 = 8685981877 is a prime.
It is a super-2 number, since 2×86859900692 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 8685989994 and 8685990021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8685990029) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203554 + ... + 242499.
It is an arithmetic number, because the mean of its divisors is an integer number (1447891284).
Almost surely, 28685990069 is an apocalyptic number.
It is an amenable number.
8685990069 is a deficient number, since it is larger than the sum of its proper divisors (2897140203).
8685990069 is a wasteful number, since it uses less digits than its factorization.
8685990069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 452547.
The product of its (nonzero) digits is 8398080, while the sum is 60.
The square root of 8685990069 is about 93198.6591588098. The cubic root of 8685990069 is about 2055.6055243434.
The spelling of 8685990069 in words is "eight billion, six hundred eighty-five million, nine hundred ninety thousand, sixty-nine".
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