2007981 is an odd 7-digits composite number following 2007980
and preceding 2007982 . In scientific notation, it is written as 2.007981 × 10^6.
The sum of its digits is 27. It has a total of 5 prime factors and 18 positive divisors.
There are 1297200 positive integers (up to 2007981) that are relatively prime to 2007981.
2007981 has 18 divisors, whose sum is 2992782
The reverse of 2007981 is 1897002
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 27
Digital Root 9
Name
two million seven thousand nine hundred eighty-one
Scientific notation
2.007981 × 10^6
Engineering notation
2.007981 × 10^6
Prime Factorization
3 × 3 × 47 × 101 × 47
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
14241
Product of the distinct prime numbers
The prime factorization of 2007981 is 3 × 3 × 47 × 101 × 47.
Since it has a total of 5 prime factors.
9 , 7 , 49 , 46 , 317 , 771 , 7119 , 3803 , 60881 , 24917 , 19165 , 172290 , 2164863 , 4968244 , 66824805 , 21354879 , 209267855 , 727148931 , 6463502534 , 2861939301
n×2
4015962
n×3
6023943
n×4
8031924
n×5
10039905
n÷2
1003990.5
n÷3
669327
n÷3
501995.25
n÷5
401596.2
n2
4031987696361
n3
8096154686526657141
n4
1.6256924783606E+25
n5
3.2643596083911E+31
2 √n
1417.032462578
3 √n
126.15947305741
4 √n
37.643491636378
5 √n
18.220148815878
1 , 3 , 9 , 47 , 101 , 141 , 303 , 423 , 909 , 2209 , 4747 , 6627 , 14241 , 19881 , 42723 , 223109 , 669327 , 2007981
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2007980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2007981 can be divided by 18 positive divisors.
The sum of these divisors (counting 2007981) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
111101010001110101101
3
Ternary
10210000102200
4
Quaternary
13222032231
5
Quinary
1003223411
6
Senary
111012113
8
Octal
7521655
10
Decimal
2007981
12
Duodecimal
80a039
16
Hexadecimal
1ea3ad
20
Vigesimal
cajj1
36
Base36
171d9
md5
95a13d74e88fee4cf0b4436d3b01e9c6
sha1
4980acead21b745959fcea4dabe4ac18c66ccc29
sha256
28f4b10b58c6b366f8ee7080bc4d15e644f13b948da98aa62a036a2dc7fbb1d8
sha512
9b63c30c3135c8db23ef20803ae534ee51cf631a708db683d68840263e9917480a93f000eb813261b73b3eb49facf1095d3885fcebf0d9091ccf6966bd9fd942
ripemd-160
ab0408241822e5a5a61cf0972f8ba84517330157
Diameter
4015962
Circumference
12616516.716296
Area
12666862926252
Volume
3.3913093447358E+19
Surface area
50667451705009
Circumference
12616516.716296
Perimeter
8031924
Area
4031987696361
Diagonal
2839713.9631875
Surface area
24191926178166
Volume
8096154686526657141
Space diagonal
3477925.112633
Perimeter
6023943
Area
1745901886397.5
Altitude
1738962.5563165
Surface area
1745901886397.5
Volume
9.5414098006304E+17
Height
946571.3210625