21121539 is an odd 8-digits composite number following 21121538
and preceding 21121540 . In scientific notation, it is written as 2.1121539 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 14081024 positive integers (up to 21121539) that are relatively prime to 21121539.
21121539 has 4 divisors, whose sum is 28162056
The reverse of 21121539 is 93512112
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million one hundred twenty-one thousand five hundred thirty-nine
Scientific notation
2.1121539 × 10^7
Engineering notation
2.1121539 × 10^6
Prime Factorization
3 × 7040513
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21121539
Product of the distinct prime numbers
The prime factorization of 21121539 is 3 × 7040513.
Since it has a total of 2 prime factors.
9 , 10 , 31 , 32 , 789 , 371 , 8843 , 4984 , 61004 , 61969 , 748093 , 476421 , 7757015 , 5245767 , 7188463 , 34133996 , 136019018 , 744568760 , 8383079797 , 523747863
n×2
42243078
n×3
63364617
n×4
84486156
n×5
105607695
n÷2
10560769.5
n÷3
7040513
n÷3
5280384.75
n÷5
4224307.8
n2
446119409728521
n3
9.4227285112379E+21
n4
1.9902252773652E+29
n5
4.2036620814656E+36
2 √n
4595.8175551255
3 √n
276.42364314176
4 √n
67.792459426735
5 √n
29.1705831962
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
-21121538
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 21121539 can be divided by 4 positive divisors.
The sum of these divisors (counting 21121539) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100100101000000011
3
Ternary
1110202002022020
4
Quaternary
1100210220003
5
Quinary
20401342124
6
Senary
2032412523
8
Octal
120445003
10
Decimal
21121539
12
Duodecimal
70a7143
16
Hexadecimal
1424a03
20
Vigesimal
6c03gj
36
Base36
ckphf
md5
e36699a03bab803b7169fc93bcce54eb
sha1
252814487dcf8072404286865a3fc6c1aff30e47
sha256
a85b7255b2711121f151ff9fd5c973e8c164ca9594c160cc22a40caf6b9a9c8e
sha512
b26b915f25268e5b79f713cb310c3e3654a59e0c9709e07b375ce5ab4503eddd5bad7cdcfe7d76c53c7869a273901f00babdf1aede155b4ec73ac186213c2dc0
ripemd-160
f341d3776e76306137dfe77d9bc5c31fc1bbd954
Diameter
42243078
Circumference
132710543.50982
Area
1.4015254602269E+15
Volume
3.9469832890235E+22
Surface area
5.6061018409077E+15
Circumference
132710543.50982
Perimeter
84486156
Area
446119409728521
Diagonal
29870366.911992
Surface area
2676716458371126
Volume
9.4227285112379E+21
Space diagonal
36583578.682048
Perimeter
63364617
Area
1.9317537097311E+14
Altitude
18291789.341024
Surface area
1.9317537097311E+14
Volume
1.110479204596E+21
Height
9956788.9706641