20155971 is an odd 8-digits composite number following 20155970
and preceding 20155972 . In scientific notation, it is written as 2.0155971 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12215720 positive integers (up to 20155971) that are relatively prime to 20155971.
20155971 has 8 divisors, whose sum is 29317824
The reverse of 20155971 is 17955102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred fifty-five thousand nine hundred seventy-one
Scientific notation
2.0155971 × 10^7
Engineering notation
2.0155971 × 10^6
Prime Factorization
3 × 11 × 610787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20155971
Product of the distinct prime numbers
The prime factorization of 20155971 is 3 × 11 × 610787.
Since it has a total of 3 prime factors.
4 , 5 , 49 , 40 , 780 , 28 , 5330 , 2153 , 39298 , 98075 , 902818 , 364202 , 6023650 , 3822803 , 36056092 , 70210282 , 676657467 , 775762702 , 8555046643 , 5106877735
n×2
40311942
n×3
60467913
n×4
80623884
n×5
100779855
n÷2
10077985.5
n÷3
6718657
n÷3
5038992.75
n÷5
4031194.2
n2
406263166952841
n3
8.1886286114696E+21
n4
1.6504976082255E+29
n5
3.3267381926963E+36
2 √n
4489.5401769001
3 √n
272.14555268472
4 √n
67.004031049632
5 √n
28.898862254898
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
-20155970
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 20155971 can be divided by 8 positive divisors.
The sum of these divisors (counting 20155971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000111001000011
3
Ternary
1101221000210110
4
Quaternary
1030320321003
5
Quinary
20124442341
6
Senary
2000002403
8
Octal
114707103
10
Decimal
20155971
12
Duodecimal
6900403
16
Hexadecimal
1338e43
20
Vigesimal
65j9ib
36
Base36
c00g3
md5
02e455476bc249af78cc68144dc22c3c
sha1
b1ceefcb00c7959e4f4a0acd32fea7485f7b2ae1
sha256
64c4b18e41def1f05a05749461d931f4db8ec640fde9abbc8e6093e4f1422510
sha512
8086b281e4d9c8c29f124c3bdbcf2f0137f89df8b00a8fe23bbeccf852b1060ee37aa41856c8bd64f457b34d28d6832a54bab6a9b9a96a7a51811c62c0e71912
ripemd-160
1ac704179a390aaffd733385a7e06c90d3cee76a
Diameter
40311942
Circumference
126643700.83914
Area
1.2763133807232E+15
Volume
3.4300447318358E+22
Surface area
5.1052535228927E+15
Circumference
126643700.83914
Perimeter
80623884
Area
406263166952841
Diagonal
28504847.550999
Surface area
2437579001717046
Volume
8.1886286114696E+21
Space diagonal
34911165.847885
Perimeter
60467913
Area
1.7591711160154E+14
Altitude
17455582.923942
Surface area
1.7591711160154E+14
Volume
9.6503913663139E+20
Height
9501615.8503329