21997907 is an odd 8-digits composite number following 21997906
and preceding 21997908 . In scientific notation, it is written as 2.1997907 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 21986976 positive integers (up to 21997907) that are relatively prime to 21997907.
21997907 has 4 divisors, whose sum is 22008840
The reverse of 21997907 is 70979912
Previous prime number is 8273
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million nine hundred ninety-seven thousand nine hundred seven
Scientific notation
2.1997907 × 10^7
Engineering notation
2.1997907 × 10^6
Prime Factorization
8273 × 2659
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21997907
Product of the distinct prime numbers
The prime factorization of 21997907 is 8273 × 2659.
Since it has a total of 2 prime factors.
4 , 2 , 34 , 3 , 965 , 65 , 3072 , 188 , 38624 , 74050 , 806674 , 640327 , 5367985 , 1092584 , 20578082 , 6719478 , 77409227 , 78372029 , 9427278464 , 8221930237
n×2
43995814
n×3
65993721
n×4
87991628
n×5
109989535
n÷2
10998953.5
n÷3
7332635.6666667
n÷3
5499476.75
n÷5
4399581.4
n2
483907912380649
n3
1.0644961253114E+22
n4
2.341668676646E+29
n5
5.1511809773671E+36
2 √n
4690.1926399669
3 √n
280.19504692264
4 √n
68.48498112701
5 √n
29.40873014834
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
-21997906
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 21997907 can be divided by 4 positive divisors.
The sum of these divisors (counting 21997907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011111010100101010011
3
Ternary
1112101121110022
4
Quaternary
1103322211103
5
Quinary
21112413112
6
Senary
2103254055
8
Octal
123724523
10
Decimal
21997907
12
Duodecimal
744a32b
16
Hexadecimal
14fa953
20
Vigesimal
6h9ef7
36
Base36
d3hoz
md5
577bfb99e0072aaff20cf2cc3186da7f
sha1
0ce3f639c2af8038fa31ae94fc90f6ac7aba56bd
sha256
df32e9d5c516d847421b75ca122ceeef4c44cbd7d1a5a55f5a5bbbc8fbdcb67c
sha512
94bd2e99c7b822e74aa470fe5f6a98c65b1dbb6a10f7d189ae14b09ea3bb064bcd2ed7f5c05703827a6a5f11e6d93b556d82a0c1ab807e1e32aed4d32035d8ae
ripemd-160
226dd366914deb12263f66be7c822484af12c4ac
Diameter
43995814
Circumference
138216926.0511
Area
1.520241542549E+15
Volume
4.4589509427373E+22
Surface area
6.0809661701961E+15
Circumference
138216926.0511
Perimeter
87991628
Area
483907912380649
Diagonal
31109738.423222
Surface area
2903447474283894
Volume
1.0644961253114E+22
Space diagonal
38101492.584175
Perimeter
65993721
Area
2.0953827260697E+14
Altitude
19050746.292088
Surface area
2.0953827260697E+14
Volume
1.2545207145908E+21
Height
10369912.807741