20152987 is an odd 8-digits composite number following 20152986
and preceding 20152988 . In scientific notation, it is written as 2.0152987 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20133520 positive integers (up to 20152987) that are relatively prime to 20152987.
20152987 has 4 divisors, whose sum is 20172456
The reverse of 20152987 is 78925102
Previous prime number is 1097
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred fifty-two thousand nine hundred eighty-seven
Scientific notation
2.0152987 × 10^7
Engineering notation
2.0152987 × 10^6
Prime Factorization
1097 × 18371
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20152987
Product of the distinct prime numbers
The prime factorization of 20152987 is 1097 × 18371.
Since it has a total of 2 prime factors.
9 , 10 , 18 , 65 , 678 , 830 , 725 , 1232 , 85257 , 21279 , 108499 , 884881 , 4546053 , 9568274 , 70172788 , 24486245 , 606585360 , 238383377 , 3972142450 , 9590247258
n×2
40305974
n×3
60458961
n×4
80611948
n×5
100764935
n÷2
10076493.5
n÷3
6717662.3333333
n÷3
5038246.75
n÷5
4030597.4
n2
406142885022169
n3
8.1849922819943E+21
n4
1.6495204305413E+29
n5
3.3242763792933E+36
2 √n
4489.2078365787
3 √n
272.13212205074
4 √n
67.001551001292
5 √n
28.898006535151
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
-20152986
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 20152987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20152987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000001010011011
3
Ternary
1101220212200221
4
Quaternary
1030320022123
5
Quinary
20124343422
6
Senary
1555540511
8
Octal
114701233
10
Decimal
20152987
12
Duodecimal
68ba737
16
Hexadecimal
133829b
20
Vigesimal
65j297
36
Base36
bzy57
md5
c9912989496e03d294132ec4435115ba
sha1
29ce518d56f632de213d98066b96a3453fcd380e
sha256
f9c7945cc7d3cfbedb35fb307631beb9132240443bd3a1ef57487f95c42a10a4
sha512
1be0702efdf21dee980712c37170a2137911bac09ecdcc43e9e992d6071d83071c144ba463bb429a574f909f7c572a708da73f5efdcfa8482db6ef976673e524
ripemd-160
22ef7150ad6cb87e47f0068ea533aefeb2d90e96
Diameter
40305974
Circumference
126624951.81418
Area
1.2759355038934E+15
Volume
3.428521549707E+22
Surface area
5.1037420155736E+15
Circumference
126624951.81418
Perimeter
80611948
Area
406142885022169
Diagonal
28500627.537729
Surface area
2436857310133014
Volume
8.1849922819943E+21
Space diagonal
34905997.408275
Perimeter
60458961
Area
1.7586502799775E+14
Altitude
17452998.704138
Surface area
1.7586502799775E+14
Volume
9.6461059109295E+20
Height
9500209.1792429