20190985 is an odd 8-digits composite number following 20190984
and preceding 20190986 . In scientific notation, it is written as 2.0190985 × 10^7.
The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors.
There are 14936064 positive integers (up to 20190985) that are relatively prime to 20190985.
20190985 has 24 divisors, whose sum is 26193240
The reverse of 20190985 is 58909102
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred ninety thousand nine hundred eighty-five
Scientific notation
2.0190985 × 10^7
Engineering notation
2.0190985 × 10^6
Prime Factorization
5 × 17 × 17 × 89 × 157
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1187705
Product of the distinct prime numbers
The prime factorization of 20190985 is 5 × 17 × 17 × 89 × 157.
Since it has a total of 5 prime factors.
3 , 9 , 45 , 12 , 53 , 761 , 5009 , 2714 , 63669 , 15159 , 753934 , 988592 , 4844028 , 1626226 , 12944933 , 31498521 , 58544045 , 655582271 , 9741782094 , 995933611
n×2
40381970
n×3
60572955
n×4
80763940
n×5
100954925
n÷2
10095492.5
n÷3
6730328.3333333
n÷3
5047746.25
n÷5
4038197
n2
407675875270225
n3
8.231377482443E+21
n4
1.6619961927734E+29
n5
3.3557340198346E+36
2 √n
4493.437993341
3 √n
272.30304765201
4 √n
67.033111171577
5 √n
28.908895632992
1 , 5 , 17 , 85 , 89 , 157 , 289 , 445 , 785 , 1445 , 1513 , 2669 , 7565 , 13345 , 13973 , 25721 , 45373 , 69865 , 128605 , 226865 , 237541 , 1187705 , 4038197 , 20190985
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20190984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20190985 can be divided by 24 positive divisors.
The sum of these divisors (counting 20190985) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101000001011100001001
3
Ternary
1101222210211021
4
Quaternary
1031001130021
5
Quinary
20132102420
6
Senary
2000432441
8
Octal
115013411
10
Decimal
20190985
12
Duodecimal
6918721
16
Hexadecimal
1341709
20
Vigesimal
663h95
36
Base36
c0rgp
md5
5cd9c4541814f4517fced7dc8c7c5981
sha1
ee18fb8ed5b66e0fd56095751139f546d1ed177b
sha256
59535acc0ec712ae939c2e054b27c16b6cdffdb19ef371210abb5117997bdb50
sha512
2c52681734a21b5bdeec8465807d67c033d1374682b7503522596543c24f6a94551d89030442ce292c3ffc6189fb490c10dcf8a17cfe534eb9b86e29930cb76e
ripemd-160
6d60bad6d6d1896d727ba59b82132d3f25e78dcf
Diameter
40381970
Circumference
126863700.28948
Area
1.2807515347947E+15
Volume
3.4479513370356E+22
Surface area
5.1230061391789E+15
Circumference
126863700.28948
Perimeter
80763940
Area
407675875270225
Diagonal
28554364.824672
Surface area
2446055251621350
Volume
8.231377482443E+21
Space diagonal
34971811.874861
Perimeter
60572955
Area
1.7652883224704E+14
Altitude
17485905.937431
Surface area
1.7652883224704E+14
Volume
9.7007713939028E+20
Height
9518121.6082239