1981013 is an odd 7-digits composite number following 1981012
and preceding 1981014 . In scientific notation, it is written as 1.981013 × 10^6.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 1894860 positive integers (up to 1981013) that are relatively prime to 1981013.
1981013 has 4 divisors, whose sum is 2067168
The reverse of 1981013 is 3101891
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 23
Digital Root 5
Name
one million nine hundred eighty-one thousand thirteen
Scientific notation
1.981013 × 10^6
Engineering notation
1.981013 × 10^6
Prime Factorization
23 × 86131
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1981013
Product of the distinct prime numbers
The prime factorization of 1981013 is 23 × 86131.
Since it has a total of 2 prime factors.
10 , 8 , 90 , 58 , 105 , 640 , 7127 , 1864 , 19286 , 28327 , 666423 , 617046 , 8867148 , 76704 , 26327659 , 14861133 , 81207278 , 118504869 , 9355611970 , 2353099668
n×2
3962026
n×3
5943039
n×4
7924052
n×5
9905065
n÷2
990506.5
n÷3
660337.66666667
n÷3
495253.25
n÷5
396202.6
n2
3924412506169
n3
7774312192083369197
n4
1.5401013518576E+25
n5
3.0509607993474E+31
2 √n
1407.4846357954
3 √n
125.59213458393
4 √n
37.516458198974
5 √n
18.17094296011
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981012
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981013 can be divided by 4 positive divisors.
The sum of these divisors (counting 1981013) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100011101001010101
3
Ternary
10201122102212
4
Quaternary
13203221111
5
Quinary
1001343023
6
Senary
110243205
8
Octal
7435125
10
Decimal
1981013
12
Duodecimal
7b6505
16
Hexadecimal
1e3a55
20
Vigesimal
c7cad
36
Base36
16gk5
md5
ffacba190715c667e6e3fde76b1b548c
sha1
4d93e4bc3d9ad3c327ed588bc472acbfdb991645
sha256
2667a97d885459b73e843f39b9ab15c07b1ce7e93c8e1ff0c6502e00fe54f6d2
sha512
609b16f6500cef32eb0822ad30739f4bd0d8ae961901cdae9a935a1dc6f25c185af34b57ea1b464be583cf3de9f493e9ce03c71021c70096f80eae6560f5aeec
ripemd-160
a89415e33d47b64bb958fa794e0fe3ee759a8813
Diameter
3962026
Circumference
12447071.774932
Area
12328905499036
Volume
3.256496275915E+19
Surface area
49315621996146
Circumference
12447071.774932
Perimeter
7924052
Area
3924412506169
Diagonal
2801575.4518374
Surface area
23546475037014
Volume
7774312192083369197
Space diagonal
3431215.1664544
Perimeter
5943039
Area
1699320462635.9
Altitude
1715607.5832272
Surface area
1699320462635.9
Volume
9.1621147834723E+17
Height
933858.4839458