642215 is an odd 6-digits composite number following 642214
and preceding 642216 . In scientific notation, it is written as 6.42215 × 10^5.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 431520 positive integers (up to 642215) that are relatively prime to 642215.
642215 has 16 divisors, whose sum is 898560
The reverse of 642215 is 512246
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2
Name
six hundred forty-two thousand two hundred fifteen
Scientific notation
6.42215 × 10^5
Engineering notation
6.42215 × 10^3
Prime Factorization
5 × 7 × 59 × 311
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
642215
Product of the distinct prime numbers
The prime factorization of 642215 is 5 × 7 × 59 × 311.
Since it has a total of 4 prime factors.
4 , 2 , 13 , 63 , 727 , 327 , 3287 , 5541 , 32327 , 31413 , 495408 , 886382 , 3748135 , 3328622 , 18980150 , 9491098 , 927598008 , 830057036 , 75936536 , 4497062840
n×2
1284430
n×3
1926645
n×4
2568860
n×5
3211075
n÷2
321107.5
n÷3
214071.66666667
n÷3
160553.75
n÷5
128443
n2
412440106225
n3
264875222819288375
n4
1.7010684122289E+23
n5
1.0924516503596E+29
2 √n
801.38317925946
3 √n
86.276691312054
4 √n
28.308712073485
5 √n
14.505613080438
1 , 5 , 7 , 35 , 59 , 295 , 311 , 413 , 1555 , 2065 , 2177 , 10885 , 18349 , 91745 , 128443 , 642215
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
-642214
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 642215 can be divided by 16 positive divisors.
The sum of these divisors (counting 642215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10011100110010100111
3
Ternary
1012121221202
4
Quaternary
2130302213
5
Quinary
131022330
6
Senary
21433115
8
Octal
2346247
10
Decimal
642215
12
Duodecimal
26b79b
16
Hexadecimal
9cca7
20
Vigesimal
405af
36
Base36
drjb
md5
eff664a071d37ace02007b026f19292d
sha1
5c473a89276efe87cf2f62aa3b211f7253c11ee6
sha256
9a58e2500e57843332b5a5e7157a75a3ddae5b68f3b871ee77962397a921573a
sha512
d2b81ec714cfea0980f93d08c9d12a6559a9b7dc6ff6bd9be81029e12f12ffd50653d79d99c6163ed8802fc5dc61f6685b658a63a137f34c791430c71e8d0744
ripemd-160
923e529e19bd207aaa95cc06650aa9b39c74baeb
Diameter
1284430
Circumference
4035155.8520503
Area
1295718807762.3
Volume
1.109506738836E+18
Surface area
5182875231049
Circumference
4035155.8520503
Perimeter
2568860
Area
412440106225
Diagonal
908229.16295944
Surface area
2474640637350
Volume
264875222819288375
Space diagonal
1112349.0093828
Perimeter
1926645
Area
178591804765.2
Altitude
556174.50469142
Surface area
178591804765.2
Volume
3.1215844370636E+16
Height
302743.05431981