21490131 is an odd 8-digits composite number following 21490130
and preceding 21490132 . In scientific notation, it is written as 2.1490131 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 12768000 positive integers (up to 21490131) that are relatively prime to 21490131.
21490131 has 16 divisors, whose sum is 31923360
The reverse of 21490131 is 13109412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million four hundred ninety thousand one hundred thirty-one
Scientific notation
2.1490131 × 10^7
Engineering notation
2.1490131 × 10^6
Prime Factorization
3 × 29 × 13 × 19001
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21490131
Product of the distinct prime numbers
The prime factorization of 21490131 is 3 × 29 × 13 × 19001.
Since it has a total of 4 prime factors.
8 , 3 , 71 , 7 , 458 , 388 , 1952 , 2368 , 87836 , 74318 , 591570 , 697455 , 5031237 , 6556986 , 11956564 , 44609196 , 830212575 , 402468477 , 7973511891 , 8372320162
n×2
42980262
n×3
64470393
n×4
85960524
n×5
107450655
n÷2
10745065.5
n÷3
7163377
n÷3
5372532.75
n÷5
4298026.2
n2
461825730397161
n3
9.9246954454057E+21
n4
2.1328300525687E+29
n5
4.5834797230439E+36
2 √n
4635.7449239577
3 √n
278.02233573106
4 √n
68.086304966254
5 √n
29.271691040788
1 , 3 , 13 , 29 , 39 , 87 , 377 , 1131 , 19001 , 57003 , 247013 , 551029 , 741039 , 1653087 , 7163377 , 21490131
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
-21490130
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 21490131 can be divided by 16 positive divisors.
The sum of these divisors (counting 21490131) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110100111010011
3
Ternary
1111102210220210
4
Quaternary
1101332213103
5
Quinary
21000141011
6
Senary
2044335203
8
Octal
121764723
10
Decimal
21490131
12
Duodecimal
7244503
16
Hexadecimal
147e9d3
20
Vigesimal
6e656b
36
Base36
cslw3
md5
03996edeacebe1d408db9c85b9ca5045
sha1
2685ea2b6aeea23176376a18c2ad4ae05ddd547c
sha256
2165f7f0ad7c875529123c5cab4a9744db793d251999f05ae4649ca6000e0e82
sha512
2d415f0188567a0834764bdd21509cac3cce6078e52fb3fcce90e91aff854066f621ae4937b1b0e3e65cb324c337304e22c3007fa41a9685b046825f21b80bfc
ripemd-160
a7ccaf421e5b83d629bfbbbdde5f09479caaacf6
Diameter
42980262
Circumference
135026475.34856
Area
1.4508683218545E+15
Volume
4.1572467067203E+22
Surface area
5.8034732874178E+15
Circumference
135026475.34856
Perimeter
85960524
Area
461825730397161
Diagonal
30391634.717374
Surface area
2770954382382966
Volume
9.9246954454057E+21
Space diagonal
37221998.753311
Perimeter
64470393
Area
1.9997640732262E+14
Altitude
18610999.376655
Surface area
1.9997640732262E+14
Volume
1.1696365751096E+21
Height
10130544.905791