21291211 is an odd 8-digits composite number following 21291210
and preceding 21291212 . In scientific notation, it is written as 2.1291211 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 20891520 positive integers (up to 21291211) that are relatively prime to 21291211.
21291211 has 8 divisors, whose sum is 21694400
The reverse of 21291211 is 11219212
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million two hundred ninety-one thousand two hundred eleven
Scientific notation
2.1291211 × 10^7
Engineering notation
2.1291211 × 10^6
Prime Factorization
79 × 181 × 1489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21291211
Product of the distinct prime numbers
The prime factorization of 21291211 is 79 × 181 × 1489.
Since it has a total of 3 prime factors.
2 , 1 , 92 , 49 , 464 , 469 , 9860 , 1618 , 14422 , 52217 , 690191 , 842488 , 4793498 , 9441050 , 77429737 , 59554300 , 111463791 , 508747985 , 4049274747 , 9776544041
n×2
42582422
n×3
63873633
n×4
85164844
n×5
106456055
n÷2
10645605.5
n÷3
7097070.3333333
n÷3
5322802.75
n÷5
4258242.2
n2
453315665846521
n3
9.6516394911438E+21
n4
2.0549509290187E+29
n5
4.3752393824384E+36
2 √n
4614.2400240993
3 √n
277.16185200218
4 √n
67.928197562568
5 √n
29.21729952359
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21291210
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21291211 can be divided by 8 positive divisors.
The sum of these divisors (counting 21291211) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001110000011001011
3
Ternary
1111001201001101
4
Quaternary
1101032003023
5
Quinary
20422304321
6
Senary
2040202231
8
Octal
121160313
10
Decimal
21291211
12
Duodecimal
7169377
16
Hexadecimal
144e0cb
20
Vigesimal
6d180b
36
Base36
cocej
md5
343852b3902eb21ecdfa2cfc51e7b053
sha1
be336409f60a670a97f27ad8c48df5de045fe44b
sha256
3581032a44d52f2e1821ccf8fa34c909b35d0d3b451b5b4fc4c395a41dccdfa3
sha512
dd1c1209ec876664ed36e88dfbd95956fddbeb6e4145fedbc529726ab34b76a07b62e34d7802edf100ddb750d45601708c082f0c8894872b1b414de714bce135
ripemd-160
1c0374c30366dceb1584d4157d62b675ed37b6ee
Diameter
42582422
Circumference
133776624.12726
Area
1.4241331655806E+15
Volume
4.0428692960633E+22
Surface area
5.6965326623224E+15
Circumference
133776624.12726
Perimeter
85164844
Area
453315665846521
Diagonal
30110319.355547
Surface area
2719893995079126
Volume
9.6516394911438E+21
Space diagonal
36877459.206669
Perimeter
63873633
Area
1.9629144127827E+14
Altitude
18438729.603335
Surface area
1.9629144127827E+14
Volume
1.1374566222926E+21
Height
10036773.118516