20198987 is an odd 8-digits prime number following 20198986
and preceding 20198988 . In scientific notation, it is written as 2.0198987 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 20198986 positive integers (up to 20198987) that are relatively prime to 20198987.
20198987 has 2 divisors, whose sum is 20198988
The reverse of 20198987 is 78989102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million one hundred ninety-eight thousand nine hundred eighty-seven
Scientific notation
2.0198987 × 10^7
Engineering notation
2.0198987 × 10^6
Prime Factorization
20198987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20198987
Product of the distinct prime numbers
The prime factorization of 20198987 is 20198987.
Since it has a total of 1 prime factors.
2 , 3 , 41 , 77 , 7 , 842 , 9120 , 3895 , 25701 , 5773 , 116037 , 929694 , 6353005 , 4573894 , 19985115 , 14810197 , 206425460 , 969196364 , 7660853978 , 8725514273
n×2
40397974
n×3
60596961
n×4
80795948
n×5
100994935
n÷2
10099493.5
n÷3
6732995.6666667
n÷3
5049746.75
n÷5
4039797.4
n2
407999075826169
n3
8.2411680286248E+21
n4
1.6646324587501E+29
n5
3.3623889394071E+36
2 √n
4494.3283146651
3 √n
272.33901553896
4 √n
67.039751749727
5 √n
28.911186678426
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20198988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10099494
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4494.3284259164
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999009851
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20198987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20198987) is 20198988, the average is 10099494.
Base
System
Value
2
Binary
1001101000011011001001011
3
Ternary
1102000012210122
4
Quaternary
1031003121023
5
Quinary
20132331422
6
Senary
2000533455
8
Octal
115033113
10
Decimal
20198987
12
Duodecimal
692128b
16
Hexadecimal
134364b
20
Vigesimal
664h97
36
Base36
c0xmz
md5
0bce9cc151d73cc7117e4ee8a0da625f
sha1
fda72738b173b168bc1971c0e26d4265d255f130
sha256
b4a35cbab2a59bbbbfa761cbc7648aff8d3d713f47be60532042f25438b8bea3
sha512
97809a6ccbbf7af66e9f89f4479de1b2fa76991fb96443f05d6734673350927be75de6f6dcd2a1cb9c9f23c89800a678831b4b8959942fe1dd0a7c28474cfc56
ripemd-160
a36f12a5eb5081d091b516f115d7b798f2a800bc
Diameter
40397974
Circumference
126913978.33831
Area
1.2817668992869E+15
Volume
3.4520523914302E+22
Surface area
5.1270675971477E+15
Circumference
126913978.33831
Perimeter
80795948
Area
407999075826169
Diagonal
28565681.361598
Surface area
2447994454957014
Volume
8.2411680286248E+21
Space diagonal
34985671.745423
Perimeter
60596961
Area
1.7666878219302E+14
Altitude
17492835.872712
Surface area
1.7666878219302E+14
Volume
9.7123096632306E+20
Height
9521893.7871993