20175981 is an odd 8-digits composite number following 20175980
and preceding 20175982 . In scientific notation, it is written as 2.0175981 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 11505600 positive integers (up to 20175981) that are relatively prime to 20175981.
20175981 has 16 divisors, whose sum is 30807168
The reverse of 20175981 is 18957102
Previous prime number is 1021
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred seventy-five thousand nine hundred eighty-one
Scientific notation
2.0175981 × 10^7
Engineering notation
2.0175981 × 10^6
Prime Factorization
3 × 7 × 1021 × 941
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20175981
Product of the distinct prime numbers
The prime factorization of 20175981 is 3 × 7 × 1021 × 941.
Since it has a total of 4 prime factors.
1 , 1 , 53 , 21 , 976 , 977 , 3120 , 8532 , 13645 , 28480 , 281238 , 707161 , 3134345 , 4152881 , 20808895 , 79948636 , 398033305 , 817149926 , 3694038002 , 2767311523
n×2
40351962
n×3
60527943
n×4
80703924
n×5
100879905
n÷2
10087990.5
n÷3
6725327
n÷3
5043995.25
n÷5
4035196.2
n2
407070209312361
n3
8.2130408087522E+21
n4
1.6570615530961E+29
n5
3.3432842411097E+36
2 √n
4491.768137382
3 √n
272.23558111745
4 √n
67.020654557994
5 √n
28.904597892631
1 , 3 , 7 , 21 , 941 , 1021 , 2823 , 3063 , 6587 , 7147 , 19761 , 21441 , 960761 , 2882283 , 6725327 , 20175981
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20175980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20175981 can be divided by 16 positive divisors.
The sum of these divisors (counting 20175981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111101110001101101
3
Ternary
1101222001020120
4
Quaternary
1030331301231
5
Quinary
20131112411
6
Senary
2000235153
8
Octal
114756155
10
Decimal
20175981
12
Duodecimal
690bab9
16
Hexadecimal
133dc6d
20
Vigesimal
661jj1
36
Base36
c0fvx
md5
4be9237f2c5646ef766d899235151174
sha1
a112b67d864cfd91f7585e06005e3ab16521c6b8
sha256
7332ee2f2766e1bf3c8c893bbeb303844bf77ae1ebb13e579de9c034a38508a5
sha512
cf29bf280612de377b4a5914cf9fe1fcf4fd82b9856e24f803888ef55e29207a7b1bb931c24129c69599da26b4c46f6d1d915118a9c4651825a9a9d1688488f3
ripemd-160
1184a94255b418df07249b6b9cbcd9f5ff29b0de
Diameter
40351962
Circumference
126769427.37713
Area
1.278848779071E+15
Volume
3.4402704891212E+22
Surface area
5.1153951162839E+15
Circumference
126769427.37713
Perimeter
80703924
Area
407070209312361
Diagonal
28533145.964382
Surface area
2442421255874166
Volume
8.2130408087522E+21
Space diagonal
34945824.184544
Perimeter
60527943
Area
1.7626657119418E+14
Altitude
17472912.092272
Surface area
1.7626657119418E+14
Volume
9.6791614167176E+20
Height
9511048.654794