| Base | Representation |
|---|---|
| bin | 110010001110001… |
| … | …1001000000000000 |
| 3 | 11100102221012110200 |
| 4 | 1210130121000000 |
| 5 | 11422400222112 |
| 6 | 435114525200 |
| 7 | 56521441446 |
| oct | 14434310000 |
| 9 | 4312835420 |
| 10 | 1685164032 |
| 11 | 79525a752 |
| 12 | 3b0436800 |
| 13 | 20b1837a6 |
| 14 | 11db42b96 |
| 15 | 9ce22cdc |
| hex | 64719000 |
1685164032 has 156 divisors (see below), whose sum is σ = 5155906860. Its totient is φ = 528482304.
The previous prime is 1685164031. The next prime is 1685164037. The reversal of 1685164032 is 2304615861.
It is a happy number.
1685164032 is a `hidden beast` number, since 1 + 6 + 8 + 5 + 1 + 640 + 3 + 2 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 594579456 + 1090584576 = 24384^2 + 33024^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (1685164031) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625344 + ... + 628032.
It is an arithmetic number, because the mean of its divisors is an integer number (33050685).
Almost surely, 21685164032 is an apocalyptic number.
1685164032 is a gapful number since it is divisible by the number (12) 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 1685164032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2577953430).
1685164032 is an abundant number, since it is smaller than the sum of its proper divisors (3470742828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1685164032 is a wasteful number, since it uses less digits than its factorization.
1685164032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2736 (or 2711 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 1685164032 is about 41050.7494694068. The cubic root of 1685164032 is about 1190.0011844726.
Adding to 1685164032 its reverse (2304615861), we get a palindrome (3989779893).
The spelling of 1685164032 in words is "one billion, six hundred eighty-five million, one hundred sixty-four thousand, thirty-two".
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