21898851 is an odd 8-digits composite number following 21898850
and preceding 21898852 . In scientific notation, it is written as 2.1898851 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors.
There are 13175136 positive integers (up to 21898851) that are relatively prime to 21898851.
21898851 has 24 divisors, whose sum is 32325120
The reverse of 21898851 is 15889812
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million eight hundred ninety-eight thousand eight hundred fifty-one
Scientific notation
2.1898851 × 10^7
Engineering notation
2.1898851 × 10^6
Prime Factorization
3 × 13 × 13 × 47 × 919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1684527
Product of the distinct prime numbers
The prime factorization of 21898851 is 3 × 13 × 13 × 47 × 919.
Since it has a total of 5 prime factors.
6 , 7 , 10 , 62 , 145 , 614 , 6157 , 1165 , 86723 , 14649 , 80017 , 155932 , 546179 , 8557640 , 48032461 , 64909995 , 415979919 , 953286391 , 7851735019 , 133537935
n×2
43797702
n×3
65696553
n×4
87595404
n×5
109494255
n÷2
10949425.5
n÷3
7299617
n÷3
5474712.75
n÷5
4379770.2
n2
479559675120201
n3
1.0501805871066E+22
n4
2.2997748200139E+29
n5
5.0362426117037E+36
2 √n
4679.6208179723
3 √n
279.77384374311
4 √n
68.407754077826
5 √n
29.38219696534
1 , 3 , 13 , 39 , 47 , 141 , 169 , 507 , 611 , 919 , 1833 , 2757 , 7943 , 11947 , 23829 , 35841 , 43193 , 129579 , 155311 , 465933 , 561509 , 1684527 , 7299617 , 21898851
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21898850
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21898851 can be divided by 24 positive divisors.
The sum of these divisors (counting 21898851) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011100010011001100011
3
Ternary
1112012120120120
4
Quaternary
1103202121203
5
Quinary
21101230401
6
Senary
2101211323
8
Octal
123423143
10
Decimal
21898851
12
Duodecimal
7400b43
16
Hexadecimal
14e2663
20
Vigesimal
6gh72b
36
Base36
d1d9f
md5
a36e16729a2eabf6feac96bb55107938
sha1
2c3dcdf8bd4f5863c7a909fd1193f927e053a679
sha256
689977f467e78896182a2c83a400eedfc71661f20ec16820805fc99d94a8047b
sha512
4d019f09b13487c0c07c2e0cbb3d5d697322327b63e64843590e48d4af5022d3074995b0733843721878e8e610cdbe10bd5fe2f514e3601a72d14bab7461dbb4
ripemd-160
9311b235727ad6d4becd558f656dd78cd9da28ef
Diameter
43797702
Circumference
137594538.84731
Area
1.5065811523155E+15
Volume
4.3989861565288E+22
Surface area
6.0263246092621E+15
Circumference
137594538.84731
Perimeter
87595404
Area
479559675120201
Diagonal
30969652.084588
Surface area
2877358050721206
Volume
1.0501805871066E+22
Space diagonal
37929922.559381
Perimeter
65696553
Area
2.0765543064235E+14
Altitude
18964961.27969
Surface area
2.0765543064235E+14
Volume
1.2376496910225E+21
Height
10323217.361529