645272 is an even 6-digits composite number following 645271
and preceding 645273 . In scientific notation, it is written as 6.45272 × 10^5.
The sum of its digits is 26. It has a total of 5 prime factors and 16 positive divisors.
There are 318240 positive integers (up to 645272) that are relatively prime to 645272.
645272 has 16 divisors, whose sum is 1226400
The reverse of 645272 is 272546
Previous prime number is 79
Is Prime? no
Number parity even
Number length 6
Sum of Digits 26
Digital Root 8
Name
six hundred forty-five thousand two hundred seventy-two
Scientific notation
6.45272 × 10^5
Engineering notation
6.45272 × 10^3
Prime Factorization
2 × 2 × 2 × 79 × 1021
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
161318
Product of the distinct prime numbers
The prime factorization of 645272 is 2 × 2 × 2 × 79 × 1021.
Since it has a total of 5 prime factors.
4 , 1 , 99 , 46 , 542 , 568 , 3415 , 3636 , 69461 , 9907 , 931508 , 816264 , 5433677 , 3625096 , 17112768 , 65681095 , 148097015 , 201607313 , 376293286 , 8332508721
n×2
1290544
n×3
1935816
n×4
2581088
n×5
3226360
n÷2
322636
n÷3
215090.66666667
n÷3
161318
n÷5
129054.4
n2
416375953984
n3
268675744579163648
n4
1.7336893505609E+23
n5
1.1187011946151E+29
2 √n
803.28824216467
3 √n
86.413369558885
4 √n
28.342340096835
5 √n
14.519396460657
1 , 2 , 4 , 8 , 79 , 158 , 316 , 632 , 1021 , 2042 , 4084 , 8168 , 80659 , 161318 , 322636 , 645272
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
-645271
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 645272 can be divided by 16 positive divisors.
The sum of these divisors (counting 645272) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10011101100010011000
3
Ternary
1012210010222
4
Quaternary
2131202120
5
Quinary
131122042
6
Senary
21455212
8
Octal
2354230
10
Decimal
645272
12
Duodecimal
271508
16
Hexadecimal
9d898
20
Vigesimal
40d3c
36
Base36
dtw8
md5
730cb5ebea58bfe101c9f7b15961cb65
sha1
1e86a9d5b42e8c24c13fdff62118b4521f986d31
sha256
a3e1317f4ed2bbfb092495cba9cacd58fca864eebd3f314ffae75b3bb555fc5b
sha512
e9e0fb6c461e162163161bf174ae7973b40cf03d841c189137b7fec47f0d02ac94a0e7040d582e8a32db1285e609eb7f27f488e17609192f269f59733171d44d
ripemd-160
d6d942b4a1c2c1b5c48ea5a3f401f5f1d2416500
Diameter
1290544
Circumference
4054363.5495344
Area
1308083638167.6
Volume
1.1254263271569E+18
Surface area
5232334552670.3
Circumference
4054363.5495344
Perimeter
2581088
Area
416375953984
Diagonal
912552.41381961
Surface area
2498255723904
Volume
268675744579163648
Space diagonal
1117643.8887016
Perimeter
1935816
Area
180296076837.56
Altitude
558821.94435079
Surface area
180296076837.56
Volume
3.1663740155379E+16
Height
304184.13793987