20155281 is an odd 8-digits composite number following 20155280
and preceding 20155282 . In scientific notation, it is written as 2.0155281 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13330800 positive integers (up to 20155281) that are relatively prime to 20155281.
20155281 has 8 divisors, whose sum is 27085824
The reverse of 20155281 is 18255102
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred fifty-five thousand two hundred eighty-one
Scientific notation
2.0155281 × 10^7
Engineering notation
2.0155281 × 10^6
Prime Factorization
3 × 127 × 52901
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20155281
Product of the distinct prime numbers
The prime factorization of 20155281 is 3 × 127 × 52901.
Since it has a total of 3 prime factors.
4 , 4 , 10 , 93 , 675 , 265 , 1091 , 2342 , 12221 , 32295 , 517961 , 225939 , 9261829 , 4879418 , 27541262 , 94741757 , 589675322 , 389359455 , 5188487780 , 7619567727
n×2
40310562
n×3
60465843
n×4
80621124
n×5
100776405
n÷2
10077640.5
n÷3
6718427
n÷3
5038820.25
n÷5
4031056.2
n2
406235352188961
n3
8.1877876755025E+21
n4
1.6502716136809E+29
n5
3.3261688100062E+36
2 √n
4489.4633309562
3 √n
272.14244719348
4 √n
67.003457604486
5 √n
28.898664393054
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
-20155280
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 20155281 can be divided by 8 positive divisors.
The sum of these divisors (counting 20155281) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000101110010001
3
Ternary
1101220222211220
4
Quaternary
1030320232101
5
Quinary
20124432111
6
Senary
1555555253
8
Octal
114705621
10
Decimal
20155281
12
Duodecimal
68bbb29
16
Hexadecimal
1338b91
20
Vigesimal
65j841
36
Base36
bzzwx
md5
f9b1c8c5a67dabc171a08e9a99825bab
sha1
755ef3b929a73ba884dca65c52f437488e8bce82
sha256
8b1385ded2bb8b82dd73c27ad71a2910fd7240a34dad1bd737089e6c0e36602e
sha512
b18ca3dafe053d3f3ef9c784800d7f98cc87a804192dd3822d5549c510f1dd4425d324d4dbf72ff585cac8d2f7c62b003403388197e9737f7920bd925598e623
ripemd-160
d9c92addb43940e07041bcab47dd08eab2591dfb
Diameter
40310562
Circumference
126639365.44128
Area
1.2762259980653E+15
Volume
3.4296924814015E+22
Surface area
5.1049039922612E+15
Circumference
126639365.44128
Perimeter
80621124
Area
406235352188961
Diagonal
28503871.743641
Surface area
2437412113133766
Volume
8.1877876755025E+21
Space diagonal
34909970.732828
Perimeter
60465843
Area
1.7590506745548E+14
Altitude
17454985.366414
Surface area
1.7590506745548E+14
Volume
9.6494003137724E+20
Height
9501290.5812136