2015981 is an odd 7-digits composite number following 2015980
and preceding 2015982 . In scientific notation, it is written as 2.015981 × 10^6.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 1832600 positive integers (up to 2015981) that are relatively prime to 2015981.
2015981 has 6 divisors, whose sum is 2216046
The reverse of 2015981 is 1895102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 26
Digital Root 8
Name
two million fifteen thousand nine hundred eighty-one
Scientific notation
2.015981 × 10^6
Engineering notation
2.015981 × 10^6
Prime Factorization
11 × 11 × 16661
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
183271
Product of the distinct prime numbers
The prime factorization of 2015981 is 11 × 11 × 16661.
Since it has a total of 3 prime factors.
3 , 3 , 79 , 80 , 985 , 601 , 7573 , 1351 , 49417 , 51500 , 547784 , 978807 , 2179296 , 2674942 , 42585933 , 13981142 , 627569100 , 230781797 , 1678378820 , 3198136543
n×2
4031962
n×3
6047943
n×4
8063924
n×5
10079905
n÷2
1007990.5
n÷3
671993.66666667
n÷3
503995.25
n÷5
403196.2
n2
4064179392361
n3
8193308435591321141
n4
1.6517554133292E+25
n5
3.3299075299188E+31
2 √n
1419.8524571236
3 √n
126.32679509066
4 √n
37.680929621277
5 √n
18.234643918503
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2015980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2015981 can be divided by 6 positive divisors.
The sum of these divisors (counting 2015981) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111101100001011101101
3
Ternary
10210102101222
4
Quaternary
13230023231
5
Quinary
1004002411
6
Senary
111113125
8
Octal
7541355
10
Decimal
2015981
12
Duodecimal
8127a5
16
Hexadecimal
1ec2ed
20
Vigesimal
cbjj1
36
Base36
177jh
md5
fc9c89e111a0ba29c708ea8c041d24a2
sha1
f6374e23aecbee901a488248d31ec2fd8bcc5a11
sha256
3ca24d722357bb25a3eab867c40b94045bc46e536643d0a0d3fa62c1c30cdec5
sha512
550813fecbe152c5a8c1595a7110c02747fef539697e3e20f5cb0214dc754f1d93534ab57537cf7d9ecde66e79a8bdd5c04ee4b3821c3f47bcf93d18376234aa
ripemd-160
98e950f8f99ca22d71ec1987822ba1ae9daeb0b8
Diameter
4031962
Circumference
12666782.198753
Area
12767996121912
Volume
3.4320050119799E+19
Surface area
51071984487649
Circumference
12666782.198753
Perimeter
8063924
Area
4064179392361
Diagonal
2851027.6716865
Surface area
24385076354166
Volume
8193308435591321141
Space diagonal
3491781.5190935
Perimeter
6047943
Area
1759841299660.9
Altitude
1745890.7595468
Surface area
1759841299660.9
Volume
9.6559065919326E+17
Height
950342.55722882