681947982 is an even 9-digits composite number following 681947981
and preceding 681947983 . In scientific notation, it is written as 6.81947982 × 10^8.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 219983040 positive integers (up to 681947982) that are relatively prime to 681947982.
681947982 has 16 divisors, whose sum is 1173244800
The reverse of 681947982 is 289749186
Previous prime number is 31
Is Prime? no
Number parity even
Number length 9
Sum of Digits 54
Digital Root 9
Name
six hundred eighty-one million nine hundred forty-seven thousand nine hundred eighty-two
Scientific notation
6.81947982 × 10^8
Engineering notation
6.81947982 × 10^6
Prime Factorization
2 × 9 × 31 × 1222129
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
681947982
Product of the distinct prime numbers
The prime factorization of 681947982 is 2 × 9 × 31 × 1222129.
Since it has a total of 4 prime factors.
3 , 6 , 52 , 61 , 509 , 423 , 3064 , 8160 , 63043 , 80975 , 176836 , 285112 , 6470446 , 1783861 , 8047319 , 65527987 , 964843118 , 36448861 , 316805737 , 6465521687
n×2
1363895964
n×3
2045843946
n×4
2727791928
n×5
3409739910
n÷2
340973991
n÷3
227315994
n÷3
170486995.5
n÷5
136389596.4
n2
465053050153872324
n3
3.1714198907538E+26
n4
2.1627433945742E+35
n5
1.4748784935137E+44
2 √n
26114.133759327
3 √n
880.20483437698
4 √n
161.59868118065
5 √n
58.44538848372
1 , 2 , 9 , 18 , 31 , 62 , 279 , 558 , 1222129 , 2444258 , 10999161 , 21998322 , 37885999 , 75771998 , 340973991 , 681947982
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-681947981
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 681947982 can be divided by 16 positive divisors.
The sum of these divisors (counting 681947982) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000101001011011001101001110
3
Ternary
1202112012112202200
4
Quaternary
220221123031032
5
Quinary
2344034313412
6
Senary
151400302330
8
Octal
5051331516
10
Decimal
681947982
12
Duodecimal
1704719a6
16
Hexadecimal
28a5b34e
20
Vigesimal
ad239j2
36
Base36
ba0ifi
md5
b04613f88057f07e4c7e024014a45950
sha1
279170b600c41d766bbc09db312e0abc64528ee1
sha256
de0cb063d6c8e6e75d950dd7dd02c1e9eaa85f5e411a6f33470fe9a3b5aa08c9
sha512
2a0e9a99e36be006c15d13974f1d056176fb63ab70ba6cdaf42689dd598ab095d16605765487db4f59998bada6be5faffeb2911402ce65ca595ceed281a6fe94
ripemd-160
4ff6b14bff79b81e2069dc54cdcc59a79818c487
Diameter
1363895964
Circumference
4284805540.7632
Area
1.4610072458929E+18
Volume
1.3284412573654E+27
Surface area
5.8440289835717E+18
Circumference
4284805540.7632
Perimeter
2727791928
Area
465053050153872324
Diagonal
964420084.97736
Surface area
2790318300923233944
Volume
3.1714198907538E+26
Space diagonal
1181168552.9431
Perimeter
2045843946
Area
2.0137387777035E+17
Altitude
590584276.47153
Surface area
2.0137387777035E+17
Volume
3.7375541845698E+25
Height
321473361.65912