642000643 is an odd 9-digits composite number following 642000642
and preceding 642000644 . In scientific notation, it is written as 6.42000643 × 10^8.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 641949280 positive integers (up to 642000643) that are relatively prime to 642000643.
642000643 has 4 divisors, whose sum is 642052008
The reverse of 642000643 is 346000246
Previous prime number is 21491
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 25
Digital Root 7
Name
six hundred forty-two million six hundred forty-three
Scientific notation
6.42000643 × 10^8
Engineering notation
6.42000643 × 10^6
Prime Factorization
21491 × 29873
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
642000643
Product of the distinct prime numbers
The prime factorization of 642000643 is 21491 × 29873.
Since it has a total of 2 prime factors.
2 , 10 , 16 , 73 , 626 , 117 , 9925 , 6110 , 17207 , 40259 , 783617 , 37164 , 2837115 , 7925195 , 25978140 , 2836568 , 175416982 , 491711931 , 1526793914 , 4659399781
n×2
1284001286
n×3
1926001929
n×4
2568002572
n×5
3210003215
n÷2
321000321.5
n÷3
214000214.33333
n÷3
160500160.75
n÷5
128400128.6
n2
412164825612413449
n3
2.6461008306515E+26
n4
1.6987984347211E+35
n5
1.0906296874183E+44
2 √n
25337.73160723
3 √n
862.67091167382
4 √n
159.17830130778
5 √n
57.744030300701
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-642000642
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 642000643 can be divided by 4 positive divisors.
The sum of these divisors (counting 642000643) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110010001000010011100000011
3
Ternary
1122202001000022121
4
Quaternary
212101002130003
5
Quinary
2303323010033
6
Senary
143412145111
8
Octal
4621023403
10
Decimal
642000643
12
Duodecimal
15b008197
16
Hexadecimal
26442703
20
Vigesimal
a0ca1c3
36
Base36
am8av7
md5
c4432a56433f149786bcd277fe7cd27b
sha1
1457577f4153b99c788e3b10895e8cf9b672e751
sha256
8af0a2f161b9163ffd82deabef78d7d2b5609812a64fab5c8a8a119daa68ad52
sha512
2a399f9eaef25100d6998eae8bf0b5a3fe25741ef79a9b369d09ce2f0235870289c0794d5cfe93acdf72a36b3d2e4d2e8235b363bff404dba0ff993c154281e6
ripemd-160
ad869b12f8be7dd4a6e5c46cf770c3d7fc232a53
Diameter
1284001286
Circumference
4033809007.2974
Area
1.2948539882121E+18
Volume
1.108396124031E+27
Surface area
5.1794159528483E+18
Circumference
4033809007.2974
Perimeter
2568002572
Area
412164825612413449
Diagonal
907926016.38285
Surface area
2472988953674480694
Volume
2.6461008306515E+26
Space diagonal
1111977732.1679
Perimeter
1926001929
Area
1.7847260476337E+17
Altitude
555988866.08394
Surface area
1.7847260476337E+17
Volume
3.1184597350951E+25
Height
302642005.46095