20159991 is an odd 8-digits composite number following 20159990
and preceding 20159992 . In scientific notation, it is written as 2.0159991 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 12983040 positive integers (up to 20159991) that are relatively prime to 20159991.
20159991 has 24 divisors, whose sum is 30126096
The reverse of 20159991 is 19995102
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million one hundred fifty-nine thousand nine hundred ninety-one
Scientific notation
2.0159991 × 10^7
Engineering notation
2.0159991 × 10^6
Prime Factorization
3 × 3 × 43 × 113 × 461
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6719997
Product of the distinct prime numbers
The prime factorization of 20159991 is 3 × 3 × 43 × 113 × 461.
Since it has a total of 5 prime factors.
7 , 8 , 32 , 79 , 390 , 490 , 2121 , 9599 , 55838 , 31923 , 50169 , 578378 , 3363694 , 5194006 , 69502010 , 91153425 , 705307110 , 878926056 , 6306536264 , 4085240453
n×2
40319982
n×3
60479973
n×4
80639964
n×5
100799955
n÷2
10079995.5
n÷3
6719997
n÷3
5039997.75
n÷5
4031998.2
n2
406425237120081
n3
8.1935291225137E+21
n4
1.6518147336811E+29
n5
3.3300570164679E+36
2 √n
4489.987861899
3 √n
272.16364413758
4 √n
67.007371698187
5 √n
28.900014907473
1 , 3 , 9 , 43 , 113 , 129 , 339 , 387 , 461 , 1017 , 1383 , 4149 , 4859 , 14577 , 19823 , 43731 , 52093 , 59469 , 156279 , 178407 , 468837 , 2239999 , 6719997 , 20159991
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
-20159990
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 20159991 can be divided by 24 positive divisors.
The sum of these divisors (counting 20159991) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100111001110111110111
3
Ternary
1101221020022100
4
Quaternary
1030321313313
5
Quinary
20130104431
6
Senary
2000033143
8
Octal
114716767
10
Decimal
20159991
12
Duodecimal
69027b3
16
Hexadecimal
1339df7
20
Vigesimal
65jjjb
36
Base36
c03jr
md5
8016ffa2a17aa1cad45768f56728c5ed
sha1
ffd89c702f02c2736c81deb1b1b49678ca0eb6c2
sha256
4f9659c7edd91a9476d155eff6fffad476c2630c1c038200b5e1a0b00df5c665
sha512
d30ce3843042d2ac0a67dec584c42926195e64845c18b7c983e031ef2745d0e62a3cdff691e32b6ba55a29a3fa8984304cfdf859cb2d3656b4fcf27ab0810877
ripemd-160
07090541ceeaa7e5aaa014994b1c068b139cf53c
Diameter
40319982
Circumference
126668959.24407
Area
1.2768225391699E+15
Volume
3.4320974531017E+22
Surface area
5.1072901566797E+15
Circumference
126668959.24407
Perimeter
80639964
Area
406425237120081
Diagonal
28510532.68952
Surface area
2438551422720486
Volume
8.1935291225137E+21
Space diagonal
34918128.692131
Perimeter
60479973
Area
1.7598729004255E+14
Altitude
17459064.346066
Surface area
1.7598729004255E+14
Volume
9.6561666739648E+20
Height
9503510.8965065