21939957 is an odd 8-digits composite number following 21939956
and preceding 21939958 . In scientific notation, it is written as 2.1939957 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 13501296 positive integers (up to 21939957) that are relatively prime to 21939957.
21939957 has 8 divisors, whose sum is 25003200
The reverse of 21939957 is 75993912
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million nine hundred thirty-nine thousand nine hundred fifty-seven
Scientific notation
2.1939957 × 10^7
Engineering notation
2.1939957 × 10^6
Prime Factorization
9 × 39 × 62507
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21939957
Product of the distinct prime numbers
The prime factorization of 21939957 is 9 × 39 × 62507.
Since it has a total of 3 prime factors.
9 , 5 , 70 , 52 , 880 , 101 , 6856 , 674 , 50908 , 28825 , 136145 , 718794 , 7908084 , 2536272 , 47694469 , 94809250 , 789415261 , 735940570 , 5763547949 , 1300279278
n×2
43879914
n×3
65819871
n×4
87759828
n×5
109699785
n÷2
10969978.5
n÷3
7313319
n÷3
5484989.25
n÷5
4387991.4
n2
481361713161849
n3
1.0561055288217E+22
n4
2.3170909889811E+29
n5
5.0836876663333E+36
2 √n
4684.010781371
3 √n
279.94878740239
4 √n
68.439833294442
5 √n
29.393219267495
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
-21939956
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 21939957 can be divided by 8 positive divisors.
The sum of these divisors (counting 21939957) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011101100011011110101
3
Ternary
1112021122222000
4
Quaternary
1103230123311
5
Quinary
21104034312
6
Senary
2102125513
8
Octal
123543365
10
Decimal
21939957
12
Duodecimal
7420899
16
Hexadecimal
14ec6f5
20
Vigesimal
6h29hh
36
Base36
d28z9
md5
0fe5ccfa94bfd29199f3cfbd18ab2f5a
sha1
99c831c568ceb1d34f2963e2e594743877137e45
sha256
599ad049076df20b6f0e1772d04cc037c918c061b2b33f9fdaac8ccc9a2fc233
sha512
5affd448ea152fed4cf2817fd06e9c7441867bca32979870234a446e38e0965d807a15ab6fd343249d31b0a8abe9364c95705e8caa77dc1ef6d1ba7820c11e8c
ripemd-160
e68a856f1dd99a1c0bdc3da620a7dd123c045d5b
Diameter
43879914
Circumference
137852815.46255
Area
1.5122424217887E+15
Volume
4.4238044943492E+22
Surface area
6.0489696871546E+15
Circumference
137852815.46255
Perimeter
87759828
Area
481361713161849
Diagonal
31027784.747283
Surface area
2888170278971094
Volume
1.0561055288217E+22
Space diagonal
38001120.239876
Perimeter
65819871
Area
2.0843573600368E+14
Altitude
19000560.119938
Surface area
2.0843573600368E+14
Volume
1.2446323017974E+21
Height
10342594.915761