20127891 is an odd 8-digits composite number following 20127890
and preceding 20127892 . In scientific notation, it is written as 2.0127891 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11256384 positive integers (up to 20127891) that are relatively prime to 20127891.
20127891 has 8 divisors, whose sum is 21536064
The reverse of 20127891 is 19872102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred twenty-seven thousand eight hundred ninety-one
Scientific notation
2.0127891 × 10^7
Engineering notation
2.0127891 × 10^6
Prime Factorization
21 × 47 × 20393
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20127891
Product of the distinct prime numbers
The prime factorization of 20127891 is 21 × 47 × 20393.
Since it has a total of 3 prime factors.
9 , 4 , 36 , 67 , 162 , 890 , 8319 , 2678 , 73371 , 6248 , 580090 , 369302 , 1019924 , 9845441 , 90667359 , 89575836 , 262890961 , 850571382 , 4010806481 , 8632516009
n×2
40255782
n×3
60383673
n×4
80511564
n×5
100639455
n÷2
10063945.5
n÷3
6709297
n÷3
5031972.75
n÷5
4025578.2
n2
405131996107881
n3
8.1544526582719E+21
n4
1.6413193427036E+29
n5
3.3036296826129E+36
2 √n
4486.4118179231
3 √n
272.01911540255
4 √n
66.98068242354
5 √n
28.890805757584
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
-20127890
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 20127891 can be divided by 8 positive divisors.
The sum of these divisors (counting 20127891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010000010010011
3
Ternary
1101212121021110
4
Quaternary
1030302002103
5
Quinary
20123043031
6
Senary
1555224403
8
Octal
114620223
10
Decimal
20127891
12
Duodecimal
68a8103
16
Hexadecimal
1332093
20
Vigesimal
65fjeb
36
Base36
bzes3
md5
38a2c9c9da0a727ab7ea7e68c6001509
sha1
c98e8f856870a8b13507fb0fe7b3d839ee2ce376
sha256
45eb09305e5b0ea7f1b9348046d9ad322ae7aba2a2a762e7879353ac8224b7a0
sha512
6150fe39f97594f16c735580838c41efbbce09dde82d898f2dd8a707651f77c74c3958a0cd50ca66326742f16f871d8125771abc813a61053f348315d50b3144
ripemd-160
fddf571fcc44b8db0cd24e9a1c7c57974f2cb9fb
Diameter
40255782
Circumference
126467268.99571
Area
1.2727597027067E+15
Volume
3.4157291420363E+22
Surface area
5.0910388108268E+15
Circumference
126467268.99571
Perimeter
80511564
Area
405131996107881
Diagonal
28465136.434167
Surface area
2430791976647286
Volume
8.1544526582719E+21
Space diagonal
34862529.861208
Perimeter
60383673
Area
1.7542730025766E+14
Altitude
17431264.930604
Surface area
1.7542730025766E+14
Volume
9.6101146192145E+20
Height
9488378.8113891