21494551 is an odd 8-digits composite number following 21494550
and preceding 21494552 . In scientific notation, it is written as 2.1494551 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19841112 positive integers (up to 21494551) that are relatively prime to 21494551.
21494551 has 4 divisors, whose sum is 23147992
The reverse of 21494551 is 15549412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred ninety-four thousand five hundred fifty-one
Scientific notation
2.1494551 × 10^7
Engineering notation
2.1494551 × 10^6
Prime Factorization
13 × 1653427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21494551
Product of the distinct prime numbers
The prime factorization of 21494551 is 13 × 1653427.
Since it has a total of 2 prime factors.
1 , 8 , 46 , 3 , 298 , 420 , 7141 , 6061 , 67984 , 81850 , 210794 , 614208 , 3981496 , 1929290 , 57376167 , 20592040 , 719936654 , 625932468 , 2072736587 , 1976432226
n×2
42989102
n×3
64483653
n×4
85978204
n×5
107472755
n÷2
10747275.5
n÷3
7164850.3333333
n÷3
5373637.75
n÷5
4298910.2
n2
462015722691601
n3
9.9308205141965E+21
n4
2.1345852801424E+29
n5
4.5881952167871E+36
2 √n
4636.2216297326
3 √n
278.04139524703
4 √n
68.089805622667
5 √n
29.272895037464
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21494550
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21494551 can be divided by 4 positive divisors.
The sum of these divisors (counting 21494551) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111101100010111
3
Ternary
1111110000222111
4
Quaternary
1101333230113
5
Quinary
21000311201
6
Senary
2044411451
8
Octal
121775427
10
Decimal
21494551
12
Duodecimal
7246b87
16
Hexadecimal
147fb17
20
Vigesimal
6e6g7b
36
Base36
cspav
md5
e59e527093a47073f33b816841f50314
sha1
ccf8e03069d99b4ff1cfccc197f602a8c2afcb1d
sha256
ca44a3b88023bc6303a006adaad852c35d7ba832f2a132b2d7dc22cd9891a9d1
sha512
f10bbd1d992b46a7156f2f3fd62fd3e790223c9a5b3a2c1491a00c03df230c70b823110104539c1f3400e362dce5bcf48135e387b42873c53a0110c115a533aa
ripemd-160
f5812af0b4e1f9a5347f7e2a0c47968bc47806dc
Diameter
42989102
Circumference
135054247.02762
Area
1.4514652002509E+15
Volume
4.1598123695358E+22
Surface area
5.8058608010037E+15
Circumference
135054247.02762
Perimeter
85978204
Area
462015722691601
Diagonal
30397885.54132
Surface area
2772094336149606
Volume
9.9308205141965E+21
Space diagonal
37229654.41788
Perimeter
64483653
Area
2.0005867639938E+14
Altitude
18614827.20894
Surface area
2.0005867639938E+14
Volume
1.1703584213891E+21
Height
10132628.513773