642243390 is an even 9-digits composite number following 642243389
and preceding 642243391 . In scientific notation, it is written as 6.42243390 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 171264896 positive integers (up to 642243390) that are relatively prime to 642243390.
642243390 has 16 divisors, whose sum is 1541384208
The reverse of 642243390 is 093342246
Previous prime number is 5
Is Prime? no
Number parity even
Number length 9
Sum of Digits 33
Digital Root 6
Name
six hundred forty-two million two hundred forty-three thousand three hundred ninety
Scientific notation
6.42243390 × 10^8
Engineering notation
6.42243390 × 10^6
Prime Factorization
2 × 3 × 5 × 21408113
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
642243390
Product of the distinct prime numbers
The prime factorization of 642243390 is 2 × 3 × 5 × 21408113.
Since it has a total of 4 prime factors.
9 , 5 , 3 , 73 , 668 , 117 , 3527 , 9622 , 69820 , 70518 , 389344 , 52367 , 4638808 , 9966935 , 86462135 , 52428486 , 938044119 , 881593188 , 860040071 , 600059398
n×2
1284486780
n×3
1926730170
n×4
2568973560
n×5
3211216950
n÷2
321121695
n÷3
214081130
n÷3
160560847.5
n÷5
128448678
n2
412476571998692100
n3
2.6491035189602E+26
n4
1.7013692244779E+35
n5
1.0926931383704E+44
2 √n
25342.521382057
3 √n
862.77962620039
4 √n
159.19334591011
5 √n
57.748396361931
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 21408113 , 42816226 , 64224339 , 107040565 , 128448678 , 214081130 , 321121695 , 642243390
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
-642243389
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 642243390 can be divided by 16 positive divisors.
The sum of these divisors (counting 642243390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110010001111101101100111110
3
Ternary
1122202111100022020
4
Quaternary
212101331230332
5
Quinary
2303403242030
6
Senary
143421301010
8
Octal
4621755476
10
Decimal
642243390
12
Duodecimal
15b104766
16
Hexadecimal
2647db3e
20
Vigesimal
a0e089a
36
Base36
amdi66
md5
b66059edcd0388c14d1c69a3ac7283be
sha1
0acf826736e04fd77649c4cfd76e6cb0882edcc8
sha256
93c22e7963973b6a30a2449c0e3ade4ab2c2ba9c73056b5b762de6152b9c829c
sha512
14e16aa27d1aecdb47fcbce35bb3cbc2831cbdbc3b62896470601b6d64c2f8f615b7ac82fd1235412727033b19e458f2b71a3d679efa7ec37504eb4e50a549c3
ripemd-160
de091b3c2404a7a4d7f26c821a2bada23b9c468e
Diameter
1284486780
Circumference
4035334231.6812
Area
1.295833368369E+18
Volume
1.1096538871686E+27
Surface area
5.183333473476E+18
Circumference
4035334231.6812
Perimeter
2568973560
Area
412476571998692100
Diagonal
908269312.48247
Surface area
2474859431992152600
Volume
2.6491035189602E+26
Space diagonal
1112398182.3053
Perimeter
1926730170
Area
1.7860759490839E+17
Altitude
556199091.15264
Surface area
1.7860759490839E+17
Volume
3.1219984372032E+25
Height
302756437.49416