221408 is an even 6-digits composite number following 221407
and preceding 221409 . In scientific notation, it is written as 2.21408 × 10^5.
The sum of its digits is 17. It has a total of 7 prime factors and 24 positive divisors.
There are 92160 positive integers (up to 221408) that are relatively prime to 221408.
221408 has 24 divisors, whose sum is 450072
The reverse of 221408 is 804122
Previous prime number is 187
Is Prime? no
Number parity even
Number length 6
Sum of Digits 17
Digital Root 8
Name
two hundred twenty-one thousand four hundred eight
Scientific notation
2.21408 × 10^5
Engineering notation
2.21408 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 2 × 187 × 37
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
13838
Product of the distinct prime numbers
The prime factorization of 221408 is 2 × 2 × 2 × 2 × 2 × 187 × 37.
Since it has a total of 7 prime factors.
2 , 4 , 52 , 36 , 832 , 594 , 4727 , 413 , 11275 , 71047 , 159819 , 474521 , 5119018 , 6635408 , 11516799 , 89469119 , 947328514 , 48756295 , 6676537238 , 5567554586
n×2
442816
n×3
664224
n×4
885632
n×5
1107040
n÷2
110704
n÷3
73802.666666667
n÷3
55352
n÷5
44281.6
n2
49021502464
n3
10853752817549312
n4
2.403107703828E+21
n5
5.3206727048914E+26
2 √n
470.54011518679
3 √n
60.496618894443
4 √n
21.691936639839
5 √n
11.722997214264
1 , 2 , 4 , 8 , 16 , 32 , 37 , 74 , 148 , 187 , 296 , 374 , 592 , 748 , 1184 , 1496 , 2992 , 5984 , 6919 , 13838 , 27676 , 55352 , 110704 , 221408
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221407
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221408 can be divided by 24 positive divisors.
The sum of these divisors (counting 221408) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
110110000011100000
3
Ternary
102020201022
4
Quaternary
312003200
5
Quinary
24041113
6
Senary
4425012
8
Octal
660340
10
Decimal
221408
12
Duodecimal
a8168
16
Hexadecimal
360e0
20
Vigesimal
17da8
36
Base36
4qu8
md5
07502844b25f027149fc76e84a4eb7b5
sha1
d60447c548dc0bbec7a6d5ba55cc065a55052814
sha256
ade257f5ead57e1633b433a42c6011998c0e366ea6c9df0681ac2bbf1353fee4
sha512
73f15b1bd824c75a2ae611dbeaf7d2bfb06bc89c085bb4ed5f23a2467a0b8e3e7585e168e9af7fb9095b529dc8f1f5e9b951ad82d2591c9f9a5ac2c9793ae241
ripemd-160
0c7456cd92db3435d83cea4f07cbcc41618d279c
Diameter
442816
Circumference
1391147.492492
Area
154005592008.84
Volume
4.5464093487323E+16
Surface area
616022368035.35
Circumference
1391147.492492
Perimeter
885632
Area
49021502464
Diagonal
313118.1964179
Surface area
294129014784
Volume
10853752817549312
Space diagonal
383489.90520221
Perimeter
664224
Area
21226933232.753
Altitude
191744.9526011
Surface area
21226933232.753
Volume
1.2791270364353E+15
Height
104372.7321393