21409957 is an odd 8-digits composite number following 21409956
and preceding 21409958 . In scientific notation, it is written as 2.1409957 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 20954380 positive integers (up to 21409957) that are relatively prime to 21409957.
21409957 has 4 divisors, whose sum is 21865536
The reverse of 21409957 is 75990412
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred nine thousand nine hundred fifty-seven
Scientific notation
2.1409957 × 10^7
Engineering notation
2.1409957 × 10^6
Prime Factorization
47 × 455531
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21409957
Product of the distinct prime numbers
The prime factorization of 21409957 is 47 × 455531.
Since it has a total of 2 prime factors.
9 , 4 , 47 , 100 , 530 , 783 , 8986 , 7190 , 82785 , 81612 , 587059 , 4847 , 3551378 , 9596845 , 90482175 , 6118307 , 1482908 , 162569511 , 6008811124 , 8628182098
n×2
42819914
n×3
64229871
n×4
85639828
n×5
107049785
n÷2
10704978.5
n÷3
7136652.3333333
n÷3
5352489.25
n÷5
4281991.4
n2
458386258741849
n3
9.8140300890539E+21
n4
2.1011796220335E+29
n5
4.4986165357013E+36
2 √n
4627.0894739566
3 √n
277.67616225715
4 √n
68.022712927056
5 √n
29.249817385608
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
-21409956
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 21409957 can be divided by 4 positive divisors.
The sum of these divisors (counting 21409957) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001101011000010100101
3
Ternary
1111021201221101
4
Quaternary
1101223002211
5
Quinary
20440104312
6
Senary
2042520101
8
Octal
121530245
10
Decimal
21409957
12
Duodecimal
7206031
16
Hexadecimal
146b0a5
20
Vigesimal
6dg4hh
36
Base36
cqw11
md5
c595091913ca6bf719c28c4320930b20
sha1
40d988da565fab9ebcdfb307f68ba9354fd1e8f8
sha256
053bb27458fd7986b0646665b11a772eae3d6c24dcd91f1dac224cf7807ee472
sha512
45f6168d5cd83fc9a978a824726e130f670351a531ec37542a495b719c4da5070a74f26813efef6aa588b61fe0cca2cf931c1c83365fbfdf957b62fce1f33af4
ripemd-160
0f601f1a03e086c2664bc380eeb2c942a54cd25d
Diameter
42819914
Circumference
134522727.24975
Area
1.4400629029699E+15
Volume
4.1108913106508E+22
Surface area
5.7602516118796E+15
Circumference
134522727.24975
Perimeter
85639828
Area
458386258741849
Diagonal
30278251.559225
Surface area
2750317552451094
Volume
9.8140300890539E+21
Space diagonal
37083133.311865
Perimeter
64229871
Area
1.9848707240807E+14
Altitude
18541566.655932
Surface area
1.9848707240807E+14
Volume
1.1565945377898E+21
Height
10092750.519742