20151255 is an odd 8-digits composite number following 20151254
and preceding 20151256 . In scientific notation, it is written as 2.0151255 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 10586400 positive integers (up to 20151255) that are relatively prime to 20151255.
20151255 has 16 divisors, whose sum is 32724864
The reverse of 20151255 is 55215102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred fifty-one thousand two hundred fifty-five
Scientific notation
2.0151255 × 10^7
Engineering notation
2.0151255 × 10^6
Prime Factorization
3 × 5 × 67 × 20051
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20151255
Product of the distinct prime numbers
The prime factorization of 20151255 is 3 × 5 × 67 × 20051.
Since it has a total of 4 prime factors.
6 , 6 , 88 , 67 , 93 , 717 , 8516 , 3803 , 3474 , 46022 , 134087 , 908864 , 5737383 , 8594200 , 92842218 , 95272636 , 756152879 , 849442505 , 1313927458 , 9219544843
n×2
40302510
n×3
60453765
n×4
80605020
n×5
100756275
n÷2
10075627.5
n÷3
6717085
n÷3
5037813.75
n÷5
4030251
n2
406073078075025
n3
8.1828821449247E+21
n4
1.6489534473733E+29
n5
3.3228481401148E+36
2 √n
4489.0149253483
3 √n
272.12432591381
4 √n
67.000111383104
5 √n
28.89750980414
1 , 3 , 5 , 15 , 67 , 201 , 335 , 1005 , 20051 , 60153 , 100255 , 300765 , 1343417 , 4030251 , 6717085 , 20151255
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20151254
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20151255 can be divided by 16 positive divisors.
The sum of these divisors (counting 20151255) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110111101111010111
3
Ternary
1101220210022210
4
Quaternary
1030313233113
5
Quinary
20124320010
6
Senary
1555524503
8
Octal
114675727
10
Decimal
20151255
12
Duodecimal
68b9733
16
Hexadecimal
1337bd7
20
Vigesimal
65ii2f
36
Base36
bzwt3
md5
d6702420c496950455ed0238a9fc367e
sha1
28439cb29f39362755f9b219e8e65bc344ae8bc7
sha256
77d7af948a37915f3744694958e0e6baa83d3b49915b438f1b441e800bad4ca9
sha512
82e8d9c2b1128a233ab0b304591511ce611f3bfbf79cc11634ad53cbf80a7dbf095a63cd32cc201313d192273d56c994d57ac892df4341c1b2292f673155cf41
ripemd-160
ebbcb665604cbea05c189b0eca56e494b47f147b
Diameter
40302510
Circumference
126614069.33723
Area
1.2757161989011E+15
Volume
3.4276376575582E+22
Surface area
5.1028647956044E+15
Circumference
126614069.33723
Perimeter
80605020
Area
406073078075025
Diagonal
28498178.119839
Surface area
2436438468450150
Volume
8.1828821449247E+21
Space diagonal
34902997.496276
Perimeter
60453765
Area
1.7583480070296E+14
Altitude
17451498.748138
Surface area
1.7583480070296E+14
Volume
9.6436190905443E+20
Height
9499392.7066129