20007990 is an even 8-digits composite number following 20007989
and preceding 20007991 . In scientific notation, it is written as 2.0007990 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 5335440 positive integers (up to 20007990) that are relatively prime to 20007990.
20007990 has 16 divisors, whose sum is 42683904
The reverse of 20007990 is 09970002
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seven thousand nine hundred ninety
Scientific notation
2.0007990 × 10^7
Engineering notation
2.0007990 × 10^6
Prime Factorization
2 × 15 × 3 × 222311
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20007990
Product of the distinct prime numbers
The prime factorization of 20007990 is 2 × 15 × 3 × 222311.
Since it has a total of 4 prime factors.
2 , 7 , 100 , 92 , 826 , 174 , 9485 , 7693 , 17607 , 46320 , 230548 , 513159 , 1739841 , 5458485 , 54145290 , 5828117 , 298385816 , 407910021 , 4858905703 , 9347012983
n×2
40015980
n×3
60023970
n×4
80031960
n×5
100039950
n÷2
10003995
n÷3
6669330
n÷3
5001997.5
n÷5
4001598
n2
400319663840100
n3
8.0095918309161E+21
n4
1.6025583325705E+29
n5
3.2063971092487E+36
2 √n
4473.0291749552
3 √n
271.47790384158
4 √n
66.880708541067
5 √n
28.856303184274
1 , 2 , 3 , 6 , 15 , 30 , 45 , 90 , 222311 , 444622 , 666933 , 1333866 , 3334665 , 6669330 , 10003995 , 20007990
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
-20007989
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 20007990 can be divided by 16 positive divisors.
The sum of these divisors (counting 20007990) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010100110000110110
3
Ternary
1101122111210200
4
Quaternary
1030110300312
5
Quinary
20110223430
6
Senary
1552501330
8
Octal
114246066
10
Decimal
20007990
12
Duodecimal
684a846
16
Hexadecimal
1314c36
20
Vigesimal
650jja
36
Base36
bwu9i
md5
66a720cc41098dd9f3626f1fcbbacaf4
sha1
bca6e0606577d0d4c95b2d6bc642a7ddd23797e8
sha256
e90434b49a669871d0fa478893b28b5d39ce3331f4d2b091662202366bd94820
sha512
8305e03bc90ee39bc4f31b15333d78fd9b565f8909ebd1f9ed4ada698188c24fb87dc29e5d756fb4bdfac307c354de5cc56e89e6d24cdb95caaf0740293cf21c
ripemd-160
7d68492926e9b510c3a1417d0b9ac8aef23f17b1
Diameter
40015980
Circumference
125713908.7942
Area
1.2576413150076E+15
Volume
3.3550499805678E+22
Surface area
5.0305652600304E+15
Circumference
125713908.7942
Perimeter
80031960
Area
400319663840100
Diagonal
28295570.813825
Surface area
2401917983040600
Volume
8.0095918309161E+21
Space diagonal
34654855.23733
Perimeter
60023970
Area
1.7334349925999E+14
Altitude
17327427.618665
Surface area
1.7334349925999E+14
Volume
9.4393944969619E+20
Height
9431856.9379418