206988145 is an odd 9-digits composite number following 206988144
and preceding 206988146 . In scientific notation, it is written as 2.06988145 × 10^8.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 131016384 positive integers (up to 206988145) that are relatively prime to 206988145.
206988145 has 8 divisors, whose sum is 229279680
The reverse of 206988145 is 541889602
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
two hundred six million nine hundred eighty-eight thousand one hundred forty-five
Scientific notation
2.06988145 × 10^8
Engineering notation
2.06988145 × 10^6
Prime Factorization
35 × 13 × 454919
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
206988145
Product of the distinct prime numbers
The prime factorization of 206988145 is 35 × 13 × 454919.
Since it has a total of 3 prime factors.
4 , 2 , 81 , 56 , 357 , 105 , 7576 , 8831 , 69819 , 19115 , 667846 , 275000 , 8485007 , 7572129 , 85460127 , 29504308 , 672483736 , 954454208 , 405937004 , 7243499999
n×2
413976290
n×3
620964435
n×4
827952580
n×5
1034940725
n÷2
103494072.5
n÷3
68996048.333333
n÷3
51747036.25
n÷5
41397629
n2
42844092170541025
n3
8.8682191625893E+24
n4
1.8356162339178E+33
n5
3.7995079919053E+41
2 √n
14387.082574309
3 √n
591.53687699514
4 √n
119.94616531724
5 √n
46.045701576356
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
-206988144
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 206988145 can be divided by 8 positive divisors.
The sum of these divisors (counting 206988145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100010101100110001101110001
3
Ternary
112102111002100121
4
Quaternary
30111212031301
5
Quinary
410442110040
6
Senary
32312250241
8
Octal
1425461561
10
Decimal
206988145
12
Duodecimal
593a0981
16
Hexadecimal
c566371
20
Vigesimal
34dda75
36
Base36
3f8h2p
md5
f9588c43d028982c0aeec031605c4340
sha1
ef6856da82494ac362eec5582e742948a8e34168
sha256
ba05872b3bcff01435c27c2b657f33f31cf2a14dedc07e1f1cfe76d72e21ef89
sha512
e39867d2ea57ca7ba06d8674f3df9578cbac5f7ab34a5ef4d106688dfaf48c0bb38659f72ccc5d3395f97691384260b197a7b50b9dd1d4f738946eb673050b71
ripemd-160
d680412cb29792297c26696c4ad7763d6dbbd49f
Diameter
413976290
Circumference
1300544871.4244
Area
1.345986852127E+17
Volume
3.7147109562153E+25
Surface area
5.3839474085078E+17
Circumference
1300544871.4244
Perimeter
827952580
Area
42844092170541025
Diagonal
292725441.90945
Surface area
257064553023246150
Volume
8.8682191625893E+24
Space diagonal
358513983.70443
Perimeter
620964435
Area
1.8552036110885E+16
Altitude
179256991.85222
Surface area
1.8552036110885E+16
Volume
1.0451296511526E+24
Height
97575147.30315