21821907 is an odd 8-digits composite number following 21821906
and preceding 21821908 . In scientific notation, it is written as 2.1821907 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 14521320 positive integers (up to 21821907) that are relatively prime to 21821907.
21821907 has 8 divisors, whose sum is 29149120
The reverse of 21821907 is 70912812
Previous prime number is 571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eight hundred twenty-one thousand nine hundred seven
Scientific notation
2.1821907 × 10^7
Engineering notation
2.1821907 × 10^6
Prime Factorization
3 × 571 × 12739
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21821907
Product of the distinct prime numbers
The prime factorization of 21821907 is 3 × 571 × 12739.
Since it has a total of 3 prime factors.
7 , 10 , 63 , 46 , 862 , 36 , 9079 , 7836 , 83589 , 89543 , 336856 , 290174 , 3617138 , 7909102 , 38346823 , 14430201 , 934165320 , 156383098 , 43039018 , 3370694130
n×2
43643814
n×3
65465721
n×4
87287628
n×5
109109535
n÷2
10910953.5
n÷3
7273969
n÷3
5455476.75
n÷5
4364381.4
n2
476195625116649
n3
1.0391496645102E+22
n4
2.2676227338024E+29
n5
4.9483852408121E+36
2 √n
4671.3924048403
3 √n
279.44578725657
4 √n
68.347585215868
5 √n
29.361520374752
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
-21821906
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 21821907 can be divided by 8 positive divisors.
The sum of these divisors (counting 21821907) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011001111100111010011
3
Ternary
1112001200000210
4
Quaternary
1103033213103
5
Quinary
21041300112
6
Senary
2055415203
8
Octal
123174723
10
Decimal
21821907
12
Duodecimal
7384503
16
Hexadecimal
14cf9d3
20
Vigesimal
6g7ef7
36
Base36
czpw3
md5
6a5fd8c2d14a8bdc915bfa7253a4ad56
sha1
8dc336581023e217cc1253e1a0c68999d6f5d2e8
sha256
0bf1b2d46123492b3559f6f0476021cfb34e1b8b1318a59d30bbc84d53ac210e
sha512
d60ab5501dd43e75eb4ec8a38c76153577e19c24320db77a8a7e1151a6fd17a1ba543593b5bfcdef67eb27176f9f4cbff3962d5e52d08b45a3963055dca22190
ripemd-160
6fecb85642bcbdfd238dadbb44b5781ff4a1a414
Diameter
43643814
Circumference
137111085.43704
Area
1.4960126775381E+15
Volume
4.3527799360075E+22
Surface area
5.9840507101523E+15
Circumference
137111085.43704
Perimeter
87287628
Area
476195625116649
Diagonal
30860836.836244
Surface area
2857173750699894
Volume
1.0391496645102E+22
Space diagonal
37796651.642043
Perimeter
65465721
Area
2.0619875426101E+14
Altitude
18898325.821021
Surface area
2.0619875426101E+14
Volume
1.2246496240715E+21
Height
10286945.612081