221438 is an even 6-digits composite number following 221437
and preceding 221439 . In scientific notation, it is written as 2.21438 × 10^5.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 94896 positive integers (up to 221438) that are relatively prime to 221438.
221438 has 8 divisors, whose sum is 379632
The reverse of 221438 is 834122
Previous prime number is 7
Is Prime? no
Number parity even
Number length 6
Sum of Digits 20
Digital Root 2
Name
two hundred twenty-one thousand four hundred thirty-eight
Scientific notation
2.21438 × 10^5
Engineering notation
2.21438 × 10^3
Prime Factorization
2 × 7 × 15817
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
221438
Product of the distinct prime numbers
The prime factorization of 221438 is 2 × 7 × 15817.
Since it has a total of 3 prime factors.
6 , 10 , 62 , 5 , 619 , 514 , 7662 , 6950 , 37767 , 78093 , 594562 , 927245 , 1109688 , 7399395 , 29443987 , 54571163 , 702247426 , 444611955 , 1760107815 , 1826647989
n×2
442876
n×3
664314
n×4
885752
n×5
1107190
n÷2
110719
n÷3
73812.666666667
n÷3
55359.5
n÷5
44287.6
n2
49034787844
n3
10858165350599672
n4
2.4044104189061E+21
n5
5.3242783434173E+26
2 √n
470.57199236674
3 √n
60.499351130258
4 √n
21.692671397657
5 √n
11.72331488197
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
-221437
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 221438 can be divided by 8 positive divisors.
The sum of these divisors (counting 221438) is 1, the average is 0.125.
Base
System
Value
2
Binary
110110000011111110
3
Ternary
102020202102
4
Quaternary
312003332
5
Quinary
24041223
6
Senary
4425102
8
Octal
660376
10
Decimal
221438
12
Duodecimal
a8192
16
Hexadecimal
360fe
20
Vigesimal
17dbi
36
Base36
4qv2
md5
485fdee616058251c13812000d92b719
sha1
64ab81662473f3e7fa8b5da8959a957028b5f844
sha256
2ef38bb6af5d357ea92acfb4aa5e064129b4afe3f9cb99166bc7123bc93ba5e5
sha512
8de6d57e28687279ec3e8554c0b19a0d42a35c6bb6f4bf6e34c1788694ffcfc6bf8d5abe496d3c5b2fd821edc16b7c9a44320baf67c62710265b39715f612599
ripemd-160
a091f6931de95cf15ca27abc522bb8a92e1863c8
Diameter
442876
Circumference
1391335.9880512
Area
154047329261.04
Volume
4.5482576662543E+16
Surface area
616189317044.18
Circumference
1391335.9880512
Perimeter
885752
Area
49034787844
Diagonal
313160.62282477
Surface area
294208727064
Volume
10858165350599672
Space diagonal
383541.86672644
Perimeter
664314
Area
21232685971.042
Altitude
191770.93336322
Surface area
21232685971.042
Volume
1.2796470584423E+15
Height
104386.87427492