| Base | Representation |
|---|---|
| bin | 1111101110001110… |
| … | …01010010110010000 |
| 3 | 210210020212221012100 |
| 4 | 13313013022112100 |
| 5 | 114241322121130 |
| 6 | 3513324000400 |
| 7 | 416112522015 |
| oct | 76707122620 |
| 9 | 23706787170 |
| 10 | 8440817040 |
| 11 | 3641691857 |
| 12 | 1776990100 |
| 13 | a469760c6 |
| 14 | 5a105570c |
| 15 | 346072c60 |
| hex | 1f71ca590 |
8440817040 has 120 divisors (see below), whose sum is σ = 28622543040. Its totient is φ = 2229011712.
The previous prime is 8440816991. The next prime is 8440817057. The reversal of 8440817040 is 407180448.
It is a happy number.
8440817040 is a `hidden beast` number, since 8 + 440 + 8 + 170 + 40 = 666.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 8440816986 and 8440817004.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 17251 + ... + 131069.
It is an arithmetic number, because the mean of its divisors is an integer number (238521192).
Almost surely, 28440817040 is an apocalyptic number.
8440817040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8440817040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14311271520).
8440817040 is an abundant number, since it is smaller than the sum of its proper divisors (20181726000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8440817040 is a wasteful number, since it uses less digits than its factorization.
8440817040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 113941 (or 113932 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The square root of 8440817040 is about 91873.9192589497. The cubic root of 8440817040 is about 2036.0799576958.
Adding to 8440817040 its reverse (407180448), we get a palindrome (8847997488).
The spelling of 8440817040 in words is "eight billion, four hundred forty million, eight hundred seventeen thousand, forty".
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