21239907 is an odd 8-digits composite number following 21239906
and preceding 21239908 . In scientific notation, it is written as 2.1239907 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13070688 positive integers (up to 21239907) that are relatively prime to 21239907.
21239907 has 4 divisors, whose sum is 21784560
The reverse of 21239907 is 70993212
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million two hundred thirty-nine thousand nine hundred seven
Scientific notation
2.1239907 × 10^7
Engineering notation
2.1239907 × 10^6
Prime Factorization
39 × 544613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21239907
Product of the distinct prime numbers
The prime factorization of 21239907 is 39 × 544613.
Since it has a total of 2 prime factors.
8 , 1 , 13 , 48 , 635 , 476 , 9373 , 6889 , 87272 , 70682 , 111271 , 889984 , 7547943 , 5249411 , 61695892 , 11545324 , 231716634 , 733785305 , 6486337458 , 8301027348
n×2
42479814
n×3
63719721
n×4
84959628
n×5
106199535
n÷2
10619953.5
n÷3
7079969
n÷3
5309976.75
n÷5
4247981.4
n2
451133649368649
n3
9.5820367571607E+21
n4
2.0352156959268E+29
n5
4.3227792106424E+36
2 √n
4608.6773590695
3 √n
276.93905352387
4 √n
67.887240031316
5 √n
29.203205339764
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
-21239906
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 21239907 can be divided by 4 positive divisors.
The sum of these divisors (counting 21239907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000001100001100011
3
Ternary
1110222002200020
4
Quaternary
1101001201203
5
Quinary
20414134112
6
Senary
2035124523
8
Octal
121014143
10
Decimal
21239907
12
Duodecimal
7143743
16
Hexadecimal
1441863
20
Vigesimal
6cejf7
36
Base36
cn8tf
md5
0d66fb885cbc01e7d70c370cee277bf1
sha1
8ab1230ac109382d9427014703d3df607c5bd372
sha256
4421aad19e82d593d8cb73dcbc7300770ecbad312c6728851189bf33f1cf34df
sha512
293a98bcacbaf24a5b3b24f4955d914c5c7fdada6b60527ef8c4779c37af025cd085686a1b807f154a525f56022488cebdb885e04a67c2a471ee623374d1f6f3
ripemd-160
ad3bc82fd0575c4bfae49cf3971230c7f49e984b
Diameter
42479814
Circumference
133454271.58826
Area
1.4172781586437E+15
Volume
4.0137141710298E+22
Surface area
5.6691126345748E+15
Circumference
133454271.58826
Perimeter
84959628
Area
451133649368649
Diagonal
30037764.542943
Surface area
2706801896211894
Volume
9.5820367571607E+21
Space diagonal
36788598.072038
Perimeter
63719721
Area
1.9534660042762E+14
Altitude
18394299.036019
Surface area
1.9534660042762E+14
Volume
1.1292538614278E+21
Height
10012588.180981