16638021 is an odd 8-digits composite number following 16638020
and preceding 16638022 . In scientific notation, it is written as 1.6638021 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 8 positive divisors.
There are 11091996 positive integers (up to 16638021) that are relatively prime to 16638021.
16638021 has 8 divisors, whose sum is 24648960
The reverse of 16638021 is 12083661
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
sixteen million six hundred thirty-eight thousand twenty-one
Scientific notation
1.6638021 × 10^7
Engineering notation
1.6638021 × 10^6
Prime Factorization
3 × 3 × 3 × 616223
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1848669
Product of the distinct prime numbers
The prime factorization of 16638021 is 3 × 3 × 3 × 616223.
Since it has a total of 4 prime factors.
1 , 4 , 44 , 93 , 245 , 779 , 6157 , 265 , 13066 , 5141 , 493893 , 82100 , 1277682 , 8806345 , 31494228 , 18077207 , 32130550 , 607843849 , 3812267589 , 6818816354
n×2
33276042
n×3
49914063
n×4
66552084
n×5
83190105
n÷2
8319010.5
n÷3
5546007
n÷3
4159505.25
n÷5
3327604.2
n2
276823742796441
n3
4.6057992459458E+21
n4
7.663138457583E+28
n5
1.2749945858317E+36
2 √n
4078.9730325169
3 √n
255.29005057877
4 √n
63.866838284957
5 √n
27.811238767122
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
-16638020
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 16638021 can be divided by 8 positive divisors.
The sum of these divisors (counting 16638021) is 1, the average is 0.125.
Base
System
Value
2
Binary
111111011110000001000101
3
Ternary
1011022022002000
4
Quaternary
333132001011
5
Quinary
13224404041
6
Senary
1352335513
8
Octal
77360105
10
Decimal
16638021
12
Duodecimal
56a4599
16
Hexadecimal
fde045
20
Vigesimal
53jf11
36
Base36
9wlz9
md5
2c644c2d4970fef9bcf52fa37607869e
sha1
4f6a66d76e0bd9a18c419c4e140674ddf4035bca
sha256
88b1bfafa7e7fa9492982c9b1e2505df227a898f150815fccb7d327072f8144c
sha512
6c25187ec491b3c563381afaa5d44ce9b0a4f20e71e60de7090846047a41d0d7166ae24e0d94cbcb65841c145177d97b5d9fd4865219f07bd26239f7fc30cb65
ripemd-160
f7a4240381d3355093796223ce31b25c8a65961c
Diameter
33276042
Circumference
104539769.08775
Area
8.6966743670853E+14
Volume
1.929272676663E+22
Surface area
3.4786697468341E+15
Circumference
104539769.08775
Perimeter
66552084
Area
276823742796441
Diagonal
23529714.949248
Surface area
1660942456778646
Volume
4.6057992459458E+21
Space diagonal
28817897.709398
Perimeter
49914063
Area
1.198681968162E+14
Altitude
14408948.854699
Surface area
1.198681968162E+14
Volume
5.4279864659869E+20
Height
7843238.3164161