20152991 is an odd 8-digits composite number following 20152990
and preceding 20152992 . In scientific notation, it is written as 2.0152991 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 19150560 positive integers (up to 20152991) that are relatively prime to 20152991.
20152991 has 8 divisors, whose sum is 21166944
The reverse of 20152991 is 19925102
Previous prime number is 5581
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-two thousand nine hundred ninety-one
Scientific notation
2.0152991 × 10^7
Engineering notation
2.0152991 × 10^6
Prime Factorization
23 × 5581 × 157
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20152991
Product of the distinct prime numbers
The prime factorization of 20152991 is 23 × 5581 × 157.
Since it has a total of 3 prime factors.
4 , 9 , 91 , 5 , 505 , 431 , 406 , 300 , 12673 , 1627 , 661970 , 233913 , 7243846 , 5168668 , 60858881 , 7750190 , 240201544 , 752591891 , 2968805537 , 854196036
n×2
40305982
n×3
60458973
n×4
80611964
n×5
100764955
n÷2
10076495.5
n÷3
6717663.6666667
n÷3
5038247.75
n÷5
4030598.2
n2
406143046246081
n3
8.1849971557099E+21
n4
1.6495217401405E+29
n5
3.3242796783355E+36
2 √n
4489.2082820916
3 √n
272.13214005515
4 √n
67.001554325938
5 √n
28.898007682296
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20152990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20152991 can be divided by 8 positive divisors.
The sum of these divisors (counting 20152991) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000001010011111
3
Ternary
1101220212201002
4
Quaternary
1030320022133
5
Quinary
20124343431
6
Senary
1555540515
8
Octal
114701237
10
Decimal
20152991
12
Duodecimal
68ba73b
16
Hexadecimal
133829f
20
Vigesimal
65j29b
36
Base36
bzy5b
md5
acd8ef88c0e47d721393f77f095eb9d0
sha1
0d0308b1ed09d65940781baffd827f1f77aa75bb
sha256
73362d10730d23d6331457067908cae1c8696383bedbadc49d438111f7b3d328
sha512
bea4ead4eb45faaedb43a87caa198526886775a11fe6081475658350051688c3db69a7ba2c9f49ed5bf1115d0961e63c5c8cf84d7de4bcfbbcb2cd3330efb1a9
ripemd-160
eabe43fbe53f6b9cb228258d6e03f2e19b91b7e5
Diameter
40305982
Circumference
126624976.94692
Area
1.2759360103933E+15
Volume
3.4285235912042E+22
Surface area
5.1037440415731E+15
Circumference
126624976.94692
Perimeter
80611964
Area
406143046246081
Diagonal
28500633.194583
Surface area
2436858277476486
Volume
8.1849971557099E+21
Space diagonal
34906004.336478
Perimeter
60458973
Area
1.7586509780975E+14
Altitude
17453002.168239
Surface area
1.7586509780975E+14
Volume
9.6461116546584E+20
Height
9500211.064861