20123971 is an odd 8-digits composite number following 20123970
and preceding 20123972 . In scientific notation, it is written as 2.0123971 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 16147584 positive integers (up to 20123971) that are relatively prime to 20123971.
20123971 has 16 divisors, whose sum is 24482304
The reverse of 20123971 is 17932102
Previous prime number is 643
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-three thousand nine hundred seventy-one
Scientific notation
2.0123971 × 10^7
Engineering notation
2.0123971 × 10^6
Prime Factorization
7 × 17 × 643 × 263
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20123971
Product of the distinct prime numbers
The prime factorization of 20123971 is 7 × 17 × 643 × 263.
Since it has a total of 4 prime factors.
9 , 1 , 17 , 18 , 662 , 814 , 9935 , 6783 , 66761 , 80564 , 711805 , 734917 , 5216481 , 7530817 , 66102958 , 56938965 , 998349502 , 460414988 , 11357535 , 836974798
n×2
40247942
n×3
60371913
n×4
80495884
n×5
100619855
n÷2
10061985.5
n÷3
6707990.3333333
n÷3
5030992.75
n÷5
4024794.2
n2
404974208808841
n3
8.1496892338171E+21
n4
1.6400410980035E+29
n5
3.300413949503E+36
2 √n
4485.9749219094
3 √n
272.00145526182
4 √n
66.977420985802
5 √n
28.889680346261
1 , 7 , 17 , 119 , 263 , 643 , 1841 , 4471 , 4501 , 10931 , 31297 , 76517 , 169109 , 1183763 , 2874853 , 20123971
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
-20123970
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 20123971 can be divided by 16 positive divisors.
The sum of these divisors (counting 20123971) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110001000101000011
3
Ternary
1101212101220021
4
Quaternary
1030301011003
5
Quinary
20122431341
6
Senary
1555154311
8
Octal
114610503
10
Decimal
20123971
12
Duodecimal
68a5997
16
Hexadecimal
1331143
20
Vigesimal
65f9ib
36
Base36
bzbr7
md5
5bad8263e3f01531f6d124bdcb5f6d36
sha1
81b88702c0e4805e91d2802ea2091c9eeffc2816
sha256
695b4ee1e98041d4a879714419a7d9cdf720ab6ff866a56e0274fb075bd82ccb
sha512
0015dbc4e8993bbee4b7bf3199ed1d141039c989537f20c8adddec0aab2f088c9466e3bf52816c404089a3b7ef52fce846114520d5de1d9630135d24d0381c0f
ripemd-160
2e557fadb2975f6ad2574f8affeadef5112d3a47
Diameter
40247942
Circumference
126442638.90931
Area
1.2722639992872E+15
Volume
3.4137338434666E+22
Surface area
5.0890559971488E+15
Circumference
126442638.90931
Perimeter
80495884
Area
404974208808841
Diagonal
28459592.717003
Surface area
2429845252853046
Volume
8.1496892338171E+21
Space diagonal
34855740.222043
Perimeter
60371913
Area
1.7535897635298E+14
Altitude
17427870.111021
Surface area
1.7535897635298E+14
Volume
9.6045008696584E+20
Height
9486530.9056676