640912 is an even 6-digits composite number following 640911
and preceding 640913 . In scientific notation, it is written as 6.40912 × 10^5.
The sum of its digits is 22. It has a total of 6 prime factors and 20 positive divisors.
There are 312320 positive integers (up to 640912) that are relatively prime to 640912.
640912 has 20 divisors, whose sum is 1273356
The reverse of 640912 is 219046
Previous prime number is 41
Is Prime? no
Number parity even
Number length 6
Sum of Digits 22
Digital Root 4
Name
six hundred forty thousand nine hundred twelve
Scientific notation
6.40912 × 10^5
Engineering notation
6.40912 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 41 × 977
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
80114
Product of the distinct prime numbers
The prime factorization of 640912 is 2 × 2 × 2 × 2 × 41 × 977.
Since it has a total of 6 prime factors.
2 , 1 , 32 , 48 , 154 , 601 , 5098 , 7249 , 58334 , 36917 , 224963 , 939025 , 6421600 , 5616339 , 21453189 , 72402371 , 373882664 , 551751116 , 6199998051 , 4552144499
n×2
1281824
n×3
1922736
n×4
2563648
n×5
3204560
n÷2
320456
n÷3
213637.33333333
n÷3
160228
n÷5
128182.4
n2
410768191744
n3
263266263307030528
n4
1.6873050734864E+23
n5
1.0814140692583E+29
2 √n
800.56979708205
3 √n
86.218302431991
4 √n
28.294342139058
5 √n
14.499722164839
1 , 2 , 4 , 8 , 16 , 41 , 82 , 164 , 328 , 656 , 977 , 1954 , 3908 , 7816 , 15632 , 40057 , 80114 , 160228 , 320456 , 640912
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-640911
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 640912 can be divided by 20 positive divisors.
The sum of these divisors (counting 640912) is 1, the average is 0.05.
Base
System
Value
2
Binary
10011100011110010000
3
Ternary
1012120011111
4
Quaternary
2130132100
5
Quinary
131002122
6
Senary
21423104
8
Octal
2343620
10
Decimal
640912
12
Duodecimal
26aa94
16
Hexadecimal
9c790
20
Vigesimal
4025c
36
Base36
dqj4
md5
f731b809ba635ebf72a7ac6876b52082
sha1
fc226f408d1bdb024be67a028ae1f569902b51df
sha256
b8cc4d5243b719f23f01e1265dfee8a3583407ecf7c6cd5ae5712c6a39703b4f
sha512
a42adfa18c9c348335ce8cc5f5ec5e87ba7a562cfa801b5bb0f5612c5cd3d535abcef77d12595e23f0a05ad58a48b298769582cc5c86aa82ed89f15a8c30d7f2
ripemd-160
05c7c97efe958a6d72566c7352cbbc03cc1e2453
Diameter
1281824
Circumference
4026968.8615951
Area
1290466333511.3
Volume
1.1027671449912E+18
Surface area
5161865334045.3
Circumference
4026968.8615951
Perimeter
2563648
Area
410768191744
Diagonal
906386.44268767
Surface area
2464609150464
Volume
263266263307030528
Space diagonal
1110092.1471806
Perimeter
1922736
Area
177867844558.45
Altitude
555046.07359029
Surface area
177867844558.45
Volume
3.1026226673674E+16
Height
302128.81422922