21490105 is an odd 8-digits composite number following 21490104
and preceding 21490106 . In scientific notation, it is written as 2.1490105 × 10^7.
The sum of its digits is 22. It has a total of 5 prime factors and 32 positive divisors.
There are 13395456 positive integers (up to 21490105) that are relatively prime to 21490105.
21490105 has 32 divisors, whose sum is 32223744
The reverse of 21490105 is 50109412
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million four hundred ninety thousand one hundred five
Scientific notation
2.1490105 × 10^7
Engineering notation
2.1490105 × 10^6
Prime Factorization
7 × 13 × 5 × 73 × 647
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21490105
Product of the distinct prime numbers
The prime factorization of 21490105 is 7 × 13 × 5 × 73 × 647.
Since it has a total of 5 prime factors.
10 , 3 , 91 , 4 , 702 , 19 , 7599 , 708 , 59807 , 57856 , 174543 , 955123 , 7548030 , 4176794 , 21141918 , 59262222 , 514561978 , 45506718 , 8927357551 , 9208590816
n×2
42980210
n×3
64470315
n×4
85960420
n×5
107450525
n÷2
10745052.5
n÷3
7163368.3333333
n÷3
5372526.25
n÷5
4298021
n2
461824612911025
n3
9.9246594230423E+21
n4
2.1328197309042E+29
n5
4.5834519963203E+36
2 √n
4635.7421196611
3 √n
278.02222360853
4 √n
68.08628437256
5 √n
29.271683957869
1 , 5 , 7 , 13 , 35 , 65 , 73 , 91 , 365 , 455 , 511 , 647 , 949 , 2555 , 3235 , 4529 , 4745 , 6643 , 8411 , 22645 , 33215 , 42055 , 47231 , 58877 , 236155 , 294385 , 330617 , 614003 , 1653085 , 3070015 , 4298021 , 21490105
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490104
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490105 can be divided by 32 positive divisors.
The sum of these divisors (counting 21490105) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001111110100110111001
3
Ternary
1111102210212211
4
Quaternary
1101332212321
5
Quinary
21000140410
6
Senary
2044335121
8
Octal
121764671
10
Decimal
21490105
12
Duodecimal
72444a1
16
Hexadecimal
147e9b9
20
Vigesimal
6e6555
36
Base36
cslvd
md5
5b0a303667647d723fc475b2a1de9726
sha1
89f407e6dc6cbdde1a3f5240845ff865551423cd
sha256
606815fd6b8f6945a7a0ab0f13dafa122b7e7ee8069cd00ab4d5cb4ca92ed46d
sha512
b9fd91999da2ecefa0a718534e40d908ca5c312615a8d127f565d7d6f6f831b69ae51273e0e193b48ce6922eb211e8ba5d17e83973fc7b062f21870ba0126c44
ripemd-160
9af47f6431dc050cedfd1a04c925190ceaf2670d
Diameter
42980210
Circumference
135026311.98575
Area
1.4508648111682E+15
Volume
4.157231617708E+22
Surface area
5.8034592446729E+15
Circumference
135026311.98575
Perimeter
85960420
Area
461824612911025
Diagonal
30391597.947822
Surface area
2770947677466150
Volume
9.9246594230423E+21
Space diagonal
37221953.71999
Perimeter
64470315
Area
1.9997592343693E+14
Altitude
18610976.859995
Surface area
1.9997592343693E+14
Volume
1.1696323298334E+21
Height
10130532.649274