21998938 is an even 8-digits composite number following 21998937
and preceding 21998939 . In scientific notation, it is written as 2.1998938 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 10153344 positive integers (up to 21998938) that are relatively prime to 21998938.
21998938 has 8 divisors, whose sum is 35536788
The reverse of 21998938 is 83989912
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-one million nine hundred ninety-eight thousand nine hundred thirty-eight
Scientific notation
2.1998938 × 10^7
Engineering notation
2.1998938 × 10^6
Prime Factorization
2 × 13 × 846113
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21998938
Product of the distinct prime numbers
The prime factorization of 21998938 is 2 × 13 × 846113.
Since it has a total of 3 prime factors.
4 , 7 , 89 , 23 , 169 , 861 , 3584 , 2830 , 18239 , 46622 , 213412 , 405745 , 8897535 , 6501999 , 79764307 , 81271498 , 880171678 , 384031197 , 3811010559 , 4991857132
n×2
43997876
n×3
65996814
n×4
87995752
n×5
109994690
n÷2
10999469
n÷3
7332979.3333333
n÷3
5499734.5
n÷5
4399787.6
n2
483953273127844
n3
1.0646458050437E+22
n4
2.3421077057115E+29
n5
5.152388220727E+36
2 √n
4690.3025488768
3 √n
280.19942425697
4 √n
68.485783553061
5 √n
29.409005809405
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
-21998937
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 21998938 can be divided by 8 positive divisors.
The sum of these divisors (counting 21998938) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111010110101011010
3
Ternary
1112101122212111
4
Quaternary
1103322311122
5
Quinary
21112431223
6
Senary
2103302534
8
Octal
123726532
10
Decimal
21998938
12
Duodecimal
744aa4a
16
Hexadecimal
14fad5a
20
Vigesimal
6h9h6i
36
Base36
d3ihm
md5
a891a48a6b7b0d32471d3d2a53ac2321
sha1
14c6110dda75f3b2a19a97ed1ffcd5069d5967aa
sha256
9bb01bc2ae44c5a62c8aecb911486cd72142dd9df261dae649fd000c3a9d5e05
sha512
dd4493a5e9c3b09de5ffcde5818dc664b87773d131f0c1e05eabdaafedd097194e2f0b2aab3b1fee3f364323c6f5afbef602b6e4e93f42808dcef1f38e270de4
ripemd-160
e6b50f51bc70e76ad4ce654fc1a68a01b2d29ac7
Diameter
43997876
Circumference
138223404.01515
Area
1.5203840475392E+15
Volume
4.4595779197338E+22
Surface area
6.0815361901567E+15
Circumference
138223404.01515
Perimeter
87995752
Area
483953273127844
Diagonal
31111196.477405
Surface area
2903719638767064
Volume
1.0646458050437E+22
Space diagonal
38103278.328558
Perimeter
65996814
Area
2.0955791438667E+14
Altitude
19051639.164279
Surface area
2.0955791438667E+14
Volume
1.254697113847E+21
Height
10370398.825802