155220 is an even 6-digits composite number following 155219
and preceding 155221 . In scientific notation, it is written as 1.55220 × 10^5.
The sum of its digits is 15. It has a total of 5 prime factors and 24 positive divisors.
There are 38016 positive integers (up to 155220) that are relatively prime to 155220.
155220 has 24 divisors, whose sum is 336000
The reverse of 155220 is 022551
Previous prime number is 39
Is Prime? no
Number parity even
Number length 6
Sum of Digits 15
Digital Root 6
Name
one hundred fifty-five thousand two hundred twenty
Scientific notation
1.55220 × 10^5
Engineering notation
1.55220 × 10^3
Prime Factorization
2 × 2 × 5 × 39 × 199
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
77610
Product of the distinct prime numbers
The prime factorization of 155220 is 2 × 2 × 5 × 39 × 199.
Since it has a total of 5 prime factors.
10 , 5 , 39 , 80 , 484 , 818 , 9871 , 1289 , 25876 , 61268 , 495215 , 877560 , 9905967 , 4652016 , 25885337 , 14563016 , 782099591 , 24750523 , 8412618800 , 8997297946
n×2
310440
n×3
465660
n×4
620880
n×5
776100
n÷2
77610
n÷3
51740
n÷3
38805
n÷5
31044
n2
24093248400
n3
3739754016648000
n4
5.804846184641E+20
n5
9.0102822477998E+25
2 √n
393.97969490825
3 √n
53.742255960227
4 √n
19.848921756817
5 √n
10.919167693649
1 , 2 , 4 , 5 , 10 , 20 , 39 , 78 , 156 , 195 , 199 , 390 , 398 , 780 , 796 , 995 , 1990 , 3980 , 7761 , 15522 , 31044 , 38805 , 77610 , 155220
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
-155219
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 155220 can be divided by 24 positive divisors.
The sum of these divisors (counting 155220) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100101111001010100
3
Ternary
21212220220
4
Quaternary
211321110
5
Quinary
14431340
6
Senary
3154340
8
Octal
457124
10
Decimal
155220
12
Duodecimal
759b0
16
Hexadecimal
25e54
20
Vigesimal
j810
36
Base36
3bro
md5
b1919b7d94d10a63debcb709eaa693f3
sha1
83dd26f5f3393a3b67a237c587a02a1691576751
sha256
7ea5a4e9d640697f195a98b0033d303973c81d30bf8fe98b9c24cf1315444b19
sha512
a27b10809b27f9af134391d4a00174861e60b6ba619e66f4b362abcdc091142fcdc485c853a9007b6e06c865ff0f449b9018f3cfab67fee21713167b42e6f0dc
ripemd-160
e338027fe20ce76191f38b6818d42e086887fd10
Diameter
310440
Circumference
975276.02338042
Area
75691172174.554
Volume
1.5665044993246E+16
Surface area
302764688698.22
Circumference
975276.02338042
Perimeter
620880
Area
24093248400
Diagonal
219514.22915155
Surface area
144559490400
Volume
3739754016648000
Space diagonal
268848.92635084
Perimeter
465660
Area
10432682587.044
Altitude
134424.46317542
Surface area
10432682587.044
Volume
4.4073423752357E+14
Height
73171.409717184