20155691 is an odd 8-digits composite number following 20155690
and preceding 20155692 . In scientific notation, it is written as 2.0155691 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19686912 positive integers (up to 20155691) that are relatively prime to 20155691.
20155691 has 4 divisors, whose sum is 20624472
The reverse of 20155691 is 19655102
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-five thousand six hundred ninety-one
Scientific notation
2.0155691 × 10^7
Engineering notation
2.0155691 × 10^6
Prime Factorization
43 × 468737
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20155691
Product of the distinct prime numbers
The prime factorization of 20155691 is 43 × 468737.
Since it has a total of 2 prime factors.
7 , 8 , 89 , 66 , 547 , 759 , 1327 , 8802 , 73706 , 82366 , 381415 , 428425 , 2028591 , 9959647 , 4688971 , 1207363 , 836282291 , 846538687 , 1594329186 , 8508482776
n×2
40311382
n×3
60467073
n×4
80622764
n×5
100778455
n÷2
10077845.5
n÷3
6718563.6666667
n÷3
5038922.75
n÷5
4031138.2
n2
406251879687481
n3
8.18828735515E+21
n4
1.6504058974961E+29
n5
3.3265071294509E+36
2 √n
4489.5089931974
3 √n
272.14429249392
4 √n
67.003798349029
5 √n
28.898781963789
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
-20155690
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 20155691 can be divided by 4 positive divisors.
The sum of these divisors (counting 20155691) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000110100101011
3
Ternary
1101221000102002
4
Quaternary
1030320310223
5
Quinary
20124440231
6
Senary
2000001215
8
Octal
114706453
10
Decimal
20155691
12
Duodecimal
690020b
16
Hexadecimal
1338d2b
20
Vigesimal
65j94b
36
Base36
c008b
md5
9de5eba3db5559a1ed29c6055fddf03e
sha1
58aa267852be9067d3e074d44f1d6921ce493ec8
sha256
ab6d6e385cd028f5c80bd25111c1ae691660fdf8909327b9246fb12961a170aa
sha512
86762c4e5f61d55a85e63e8310f3c2c1b4bc5a6dd281a557e9b560b8f92ae9aa10ef62784fb9cafbac44ecbde69ff512eaead071a3524bb940a3d65f11bb00dd
ripemd-160
b93109738e94fdadb2cf51b7badee18ca63bae62
Diameter
40311382
Circumference
126641941.54725
Area
1.2762779207332E+15
Volume
3.4299017867229E+22
Surface area
5.1051116829329E+15
Circumference
126641941.54725
Perimeter
80622764
Area
406251879687481
Diagonal
28504451.571201
Surface area
2437511278124886
Volume
8.18828735515E+21
Space diagonal
34910680.873659
Perimeter
60467073
Area
1.7591222407227E+14
Altitude
17455340.436829
Surface area
1.7591222407227E+14
Volume
9.6499891918844E+20
Height
9501483.8570671