21031454 is an even 8-digits composite number following 21031453
and preceding 21031455 . In scientific notation, it is written as 2.1031454 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 10092600 positive integers (up to 21031454) that are relatively prime to 21031454.
21031454 has 16 divisors, whose sum is 32833536
The reverse of 21031454 is 45413012
Previous prime number is 127
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand four hundred fifty-four
Scientific notation
2.1031454 × 10^7
Engineering notation
2.1031454 × 10^6
Prime Factorization
2 × 31 × 127 × 2671
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031454
Product of the distinct prime numbers
The prime factorization of 21031454 is 2 × 31 × 127 × 2671.
Since it has a total of 4 prime factors.
6 , 1 , 81 , 44 , 289 , 130 , 8672 , 8922 , 86310 , 13210 , 707291 , 15154 , 6729569 , 4689249 , 10662307 , 8646099 , 790242818 , 801212347 , 8407924366 , 2263208017
n×2
42062908
n×3
63094362
n×4
84125816
n×5
105157270
n÷2
10515727
n÷3
7010484.6666667
n÷3
5257863.5
n÷5
4206290.8
n2
442322057354116
n3
9.3026760024285E+21
n4
1.9564880242198E+29
n5
4.1147787882929E+36
2 √n
4586.0063235892
3 √n
276.03009368704
4 √n
67.720058502553
5 √n
29.145657676738
1 , 2 , 31 , 62 , 127 , 254 , 2671 , 3937 , 5342 , 7874 , 82801 , 165602 , 339217 , 678434 , 10515727 , 21031454
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
-21031453
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 21031454 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031454) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101000011110
3
Ternary
1110120111201202
4
Quaternary
1100032220132
5
Quinary
20341001304
6
Senary
2030435502
8
Octal
120165036
10
Decimal
21031454
12
Duodecimal
7062b92
16
Hexadecimal
140ea1e
20
Vigesimal
6b8ice
36
Base36
cirz2
md5
156d7b8c4208d1e50c75673f892c8e89
sha1
afaf74944d100613a452ba932a231767e0d7587d
sha256
bb23d1a859500cb72cafd865afd676dee927db56771e9ee5fa4b52b3b7519850
sha512
1c3dbd4c1a5a14c33e9ccccd161dbc797d2c11948b66acfccac88a687313001ccc28cec89e13a9d54ebe7539c0c65a939e28d20188f83edc3e3347e98fcfe289
ripemd-160
ef1bf4704d40ea7ed6b37be022b968993fcc2438
Diameter
42062908
Circumference
132144522.76142
Area
1.3895957259044E+15
Volume
3.8966958117274E+22
Surface area
5.5583829036177E+15
Circumference
132144522.76142
Perimeter
84125816
Area
442322057354116
Diagonal
29742967.483226
Surface area
2653932344124696
Volume
9.3026760024285E+21
Space diagonal
36427546.885048
Perimeter
63094362
Area
1.9153106916143E+14
Altitude
18213773.442524
Surface area
1.9153106916143E+14
Volume
1.0963308807498E+21
Height
9914322.4944086