83640981 is an odd 8-digits composite number following 83640980
and preceding 83640982 . In scientific notation, it is written as 8.3640981 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 55200000 positive integers (up to 83640981) that are relatively prime to 83640981.
83640981 has 16 divisors, whose sum is 112650048
The reverse of 83640981 is 18904638
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-three million six hundred forty thousand nine hundred eighty-one
Scientific notation
8.3640981 × 10^7
Engineering notation
8.3640981 × 10^6
Prime Factorization
3 × 401 × 251 × 277
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
83640981
Product of the distinct prime numbers
The prime factorization of 83640981 is 3 × 401 × 251 × 277.
Since it has a total of 4 prime factors.
9 , 4 , 58 , 99 , 186 , 689 , 9420 , 245 , 40340 , 72689 , 396657 , 506442 , 7492960 , 2015796 , 5175543 , 57038416 , 11506600 , 43287523 , 343183793 , 4327667983
n×2
167281962
n×3
250922943
n×4
334563924
n×5
418204905
n÷2
41820490.5
n÷3
27880327
n÷3
20910245.25
n÷5
16728196.2
n2
6995813702642361
n3
5.8513672098225E+23
n4
4.8941409362079E+31
n5
4.0935074905668E+39
2 √n
9145.5443249705
3 √n
437.32708224993
4 √n
95.632339326038
5 √n
38.413495081102
1 , 3 , 251 , 277 , 401 , 753 , 831 , 1203 , 69527 , 100651 , 111077 , 208581 , 301953 , 333231 , 27880327 , 83640981
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
-83640980
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 83640981 can be divided by 16 positive divisors.
The sum of these divisors (counting 83640981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111111000100001010010101
3
Ternary
12211101101212010
4
Quaternary
10333010022111
5
Quinary
132403002411
6
Senary
12144414433
8
Octal
477041225
10
Decimal
83640981
12
Duodecimal
24017419
16
Hexadecimal
4fc4295
20
Vigesimal
162f291
36
Base36
1dspsl
md5
df7c6c7639712be821f0f4cf1b46aecc
sha1
f2f435d9578c8815a3e75905e6530c048afc60ae
sha256
36a8b195ab3d130a8b8f19892d9d65eeef338d1d4e9bdea40c7c93f90f2c424e
sha512
cf3cf2515b3068acef860edd9f2e27b85e185faa6f44c02e3b0bb9ef5a88b16c7f82abfa00a1c48459b0c1dd01c071cc002d3c8eebd07d3b7a3d1b770b3a2179
ripemd-160
5e50acd160ed6db10b6cabc48f309139f99a13ac
Diameter
167281962
Circumference
525531782.89729
Area
2.1977996934104E+16
Volume
2.4510149653113E+24
Surface area
8.7911987736416E+16
Circumference
525531782.89729
Perimeter
334563924
Area
6995813702642361
Diagonal
118286209.70039
Surface area
41974882215854166
Volume
5.8513672098225E+23
Space diagonal
144870428.6869
Perimeter
250922943
Area
3.0292761933158E+15
Altitude
72435214.343452
Surface area
3.0292761933158E+15
Volume
6.8959023887968E+22
Height
39428736.566797