21742521 is an odd 8-digits composite number following 21742520
and preceding 21742522 . In scientific notation, it is written as 2.1742521 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13864752 positive integers (up to 21742521) that are relatively prime to 21742521.
21742521 has 4 divisors, whose sum is 22057700
The reverse of 21742521 is 12524712
Previous prime number is 69
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million seven hundred forty-two thousand five hundred twenty-one
Scientific notation
2.1742521 × 10^7
Engineering notation
2.1742521 × 10^6
Prime Factorization
69 × 315109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21742521
Product of the distinct prime numbers
The prime factorization of 21742521 is 69 × 315109.
Since it has a total of 2 prime factors.
7 , 6 , 89 , 41 , 861 , 560 , 744 , 9682 , 35214 , 47973 , 295255 , 629640 , 7572189 , 1109571 , 21906464 , 20597605 , 616553776 , 975998365 , 7907676180 , 8739218210
n×2
43485042
n×3
65227563
n×4
86970084
n×5
108712605
n÷2
10871260.5
n÷3
7247507
n÷3
5435630.25
n÷5
4348504.2
n2
472737219435441
n3
1.0278498921057E+22
n4
2.2348047863955E+29
n5
4.8590289999105E+36
2 √n
4662.8876246378
3 √n
279.10650986656
4 √n
68.28533974901
5 √n
29.340126342547
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
-21742520
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 21742521 can be divided by 4 positive divisors.
The sum of these divisors (counting 21742521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010111100001110111001
3
Ternary
1111220122010120
4
Quaternary
1102330032321
5
Quinary
21031230041
6
Senary
2054003453
8
Octal
122741671
10
Decimal
21742521
12
Duodecimal
7346589
16
Hexadecimal
14bc3b9
20
Vigesimal
6fhg61
36
Base36
cy0mx
md5
8d6f32a905e9f4b999c0c972f4bec04b
sha1
91c8931e2c8df7a58e37cccdb3bf2c55f22c6cfd
sha256
24495d4ba3207c70a0199eaab54118cc96bfee08813d3f0152930c59a1e53ec7
sha512
db03d39894f8a5cb7f3acd276cd5c472f7564880f36088bae4d7d8cfc3aa9bf3bfc97d1f9e8cfc01698180c8dfe0b9b430df291d8f630cdbc36d48f7be84bd4c
ripemd-160
484023fc2791ab3f1bee448033a9d3665f3e056e
Diameter
43485042
Circumference
136612288.48824
Area
1.4851477756568E+15
Volume
4.305447560043E+22
Surface area
5.9405911026274E+15
Circumference
136612288.48824
Perimeter
86970084
Area
472737219435441
Diagonal
30748568.078382
Surface area
2836423316612646
Volume
1.0278498921057E+22
Space diagonal
37659151.056633
Perimeter
65227563
Area
2.0470122067276E+14
Altitude
18829575.528317
Surface area
2.0470122067276E+14
Volume
1.211332714583E+21
Height
10249522.692794