7990987 is an odd 7-digits composite number following 7990986
and preceding 7990988 . In scientific notation, it is written as 7.990987 × 10^6.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 7820920 positive integers (up to 7990987) that are relatively prime to 7990987.
7990987 has 4 divisors, whose sum is 8161056
The reverse of 7990987 is 7890997
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 49
Digital Root 4
Name
seven million nine hundred ninety thousand nine hundred eighty-seven
Scientific notation
7.990987 × 10^6
Engineering notation
7.990987 × 10^6
Prime Factorization
47 × 170021
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
7990987
Product of the distinct prime numbers
The prime factorization of 7990987 is 47 × 170021.
Since it has a total of 2 prime factors.
2 , 7 , 37 , 69 , 395 , 261 , 9766 , 7689 , 51437 , 50089 , 864869 , 727393 , 1650790 , 1238927 , 5894414 , 95225962 , 975033182 , 609819807 , 8783569786 , 5250397421
n×2
15981974
n×3
23972961
n×4
31963948
n×5
39954935
n÷2
3995493.5
n÷3
2663662.3333333
n÷3
1997746.75
n÷5
1598197.4
n2
63855873234169
n3
5.1027145288789E+20
n4
4.0775725464983E+27
n5
3.2583829210624E+34
2 √n
2826.8333873789
3 √n
199.92486344269
4 √n
53.167973323975
5 √n
24.017073371408
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
-7990986
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 7990987 can be divided by 4 positive divisors.
The sum of these divisors (counting 7990987) is 1, the average is 0.25.
Base
System
Value
2
Binary
11110011110111011001011
3
Ternary
120000222120111
4
Quaternary
132132323023
5
Quinary
4021202422
6
Senary
443135151
8
Octal
36367313
10
Decimal
7990987
12
Duodecimal
28144b7
16
Hexadecimal
79eecb
20
Vigesimal
29ih97
36
Base36
4r9vv
md5
e9524135ec081fcfdb8178605328f630
sha1
c2ba0621a67dccee45b856d04601b226193a15d9
sha256
8319a84ffee60080a919ad6e634f50a17f01bce64038982a5c571409b786f2f1
sha512
aa13ccb412ffc67df5c4c8829ddb854be069a7a775813350937a6c4678b0c786ffb916ed6b4257e7b4ad169c0506cbb2e60885dbb60ec5d02f58732902a02c4c
ripemd-160
a0553b4a941235fe85d923aaf3f50c22a7019b7c
Diameter
15981974
Circumference
50208852.108263
Area
2.0060914224103E+14
Volume
2.1374200636389E+21
Surface area
8.0243656896411E+14
Circumference
50208852.108263
Perimeter
31963948
Area
63855873234169
Diagonal
11300962.192147
Surface area
383135239405014
Volume
5.1027145288789E+20
Space diagonal
13840795.486622
Perimeter
23972961
Area
27650404200815
Altitude
6920397.7433112
Surface area
27650404200815
Volume
6.013606743049E+19
Height
3766987.3973824