20157729 is an odd 8-digits composite number following 20157728
and preceding 20157730 . In scientific notation, it is written as 2.0157729 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 12854160 positive integers (up to 20157729) that are relatively prime to 20157729.
20157729 has 8 divisors, whose sum is 28045632
The reverse of 20157729 is 92775102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred fifty-seven thousand seven hundred twenty-nine
Scientific notation
2.0157729 × 10^7
Engineering notation
2.0157729 × 10^6
Prime Factorization
3 × 23 × 292141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157729
Product of the distinct prime numbers
The prime factorization of 20157729 is 3 × 23 × 292141.
Since it has a total of 3 prime factors.
5 , 7 , 67 , 37 , 279 , 169 , 4263 , 6091 , 72218 , 68202 , 453691 , 860113 , 9078363 , 2935309 , 24737052 , 15603825 , 508235769 , 966847100 , 5955465431 , 1304350058
n×2
40315458
n×3
60473187
n×4
80630916
n×5
100788645
n÷2
10078864.5
n÷3
6719243
n÷3
5039432.25
n÷5
4031545.8
n2
406334038437441
n3
8.1907714302975E+21
n4
1.6510735079288E+29
n5
3.3281892331908E+36
2 √n
4489.7359610561
3 √n
272.15346461601
4 √n
67.005492021595
5 √n
28.899366347978
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
-20157728
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 20157729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010100100001
3
Ternary
1101221010012120
4
Quaternary
1030321110201
5
Quinary
20130021404
6
Senary
2000014453
8
Octal
114712441
10
Decimal
20157729
12
Duodecimal
6901429
16
Hexadecimal
1339521
20
Vigesimal
65je69
36
Base36
c01sx
md5
cf599e9ba5ecbd8c2c00a15f8a835f70
sha1
3bf79c68c73ef928f505a58dda4648a101b2359e
sha256
4e70c3b65f5a702ec0026a227cc684458c80397bfe0b0b71cdf935c0dc4f8c48
sha512
1032ac7a18596dc1c7c092df317a1e5a7737cd1ec58654c3e23ef54ab26514005e244e2419cb5458dfaf7a2b2adca446a373293e5ce69e262e83a63716d12b8c
ripemd-160
df726029dce919e0005053bc37d06b4a2ad54fbf
Diameter
40315458
Circumference
126654746.67891
Area
1.2765360300585E+15
Volume
3.4309423136874E+22
Surface area
5.1061441202341E+15
Circumference
126654746.67891
Perimeter
80630916
Area
406334038437441
Diagonal
28507333.738441
Surface area
2438004230624646
Volume
8.1907714302975E+21
Space diagonal
34914210.793205
Perimeter
60473187
Area
1.7594779985457E+14
Altitude
17457105.396602
Surface area
1.7594779985457E+14
Volume
9.6529167025207E+20
Height
9502444.5794805