20007985 is an odd 8-digits composite number following 20007984
and preceding 20007986 . In scientific notation, it is written as 2.0007985 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 16006384 positive integers (up to 20007985) that are relatively prime to 20007985.
20007985 has 4 divisors, whose sum is 24009588
The reverse of 20007985 is 58970002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million seven thousand nine hundred eighty-five
Scientific notation
2.0007985 × 10^7
Engineering notation
2.0007985 × 10^6
Prime Factorization
5 × 4001597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20007985
Product of the distinct prime numbers
The prime factorization of 20007985 is 5 × 4001597.
Since it has a total of 2 prime factors.
6 , 5 , 89 , 11 , 515 , 19 , 3451 , 2412 , 76181 , 97810 , 481735 , 650542 , 8570781 , 9881210 , 84881847 , 85106120 , 205615715 , 802124163 , 6304478512 , 5292271881
n×2
40015970
n×3
60023955
n×4
80031940
n×5
100039925
n÷2
10003992.5
n÷3
6669328.3333333
n÷3
5001996.25
n÷5
4001597
n2
400319463760225
n3
8.0095858261226E+21
n4
1.6025567306527E+29
n5
3.2063931028549E+36
2 √n
4473.0286160498
3 √n
271.47788122745
4 √n
66.880704362692
5 √n
28.856301742035
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
-20007984
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 20007985 can be divided by 4 positive divisors.
The sum of these divisors (counting 20007985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010100110000110001
3
Ternary
1101122111210111
4
Quaternary
1030110300301
5
Quinary
20110223420
6
Senary
1552501321
8
Octal
114246061
10
Decimal
20007985
12
Duodecimal
684a841
16
Hexadecimal
1314c31
20
Vigesimal
650jj5
36
Base36
bwu9d
md5
6d75cfb52a9d00236b24bcc75cf447dd
sha1
6c17e7e3869d6fc7245f292f17f88ae49c5cba3e
sha256
6643b25b1a45d03d8bbb01d2e3d5b050b35a7e925d38565cda26be3fb7befed4
sha512
90376bb21667aca95707088b4ac9b012161cbf76ffd14746f3e46cb2a1caac23c61bf02b6e9b29c7921c48cdd2b0a56b5c81a6be0a94944da82009a7b97fc989
ripemd-160
8c1fda3a9c0ce94e98e932e33ebad0b6a0b421ae
Diameter
40015970
Circumference
125713877.37827
Area
1.2576406864381E+15
Volume
3.3550474652858E+22
Surface area
5.0305627457525E+15
Circumference
125713877.37827
Perimeter
80031940
Area
400319463760225
Diagonal
28295563.742757
Surface area
2401916782561350
Volume
8.0095858261226E+21
Space diagonal
34654846.577076
Perimeter
60023955
Area
1.7334341262286E+14
Altitude
17327423.288538
Surface area
1.7334341262286E+14
Volume
9.4393874202449E+20
Height
9431854.5809192