663 is an odd 3-digits composite number following 662
and preceding 664 . In scientific notation, it is written as 6.63 × 10^2.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 384 positive integers (up to 663) that are relatively prime to 663.
663 has 8 divisors, whose sum is 1008
The reverse of 663 is 366
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 3
Sum of Digits 15
Digital Root 6
Name
six hundred sixty-three
Scientific notation
6.63 × 10^2
Engineering notation
6.63 × 10^0
Prime Factorization
3 × 17 × 13
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
663
Product of the distinct prime numbers
The prime factorization of 663 is 3 × 17 × 13.
Since it has a total of 3 prime factors.
3 , 5 , 52 , 76 , 998 , 400 , 3559 , 2461 , 10001 , 96131 , 789707 , 865894 , 9575366 , 1852024 , 93002284 , 37747142 , 771094325 , 544108769 , 2185288360 , 6857720129
n×2
1326
n×3
1989
n×4
2652
n×5
3315
n÷2
331.5
n÷3
221
n÷3
165.75
n÷5
132.6
n2
439569
n3
291434247
n4
193220905761
n5
128105460519543
2 √n
25.748786379167
3 √n
8.7197595534519
4 √n
5.0743261995232
5 √n
3.6669307271666
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-662
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 663 can be divided by 8 positive divisors.
The sum of these divisors (counting 663) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010111
3
Ternary
220120
4
Quaternary
22113
5
Quinary
10123
6
Senary
3023
8
Octal
1227
10
Decimal
663
12
Duodecimal
473
16
Hexadecimal
297
20
Vigesimal
1d3
36
Base36
if
md5
8757150decbd89b0f5442ca3db4d0e0e
sha1
b66cd90e3946dd63b5a914d5eb2c7eddb46177ec
sha256
4b8ba4b13094beaef100d3eb7d4c8e23600c30be4420c47e0d6b4e88dbd70abb
sha512
3d4e5151534861c392abba9bd11d127ea0d3985fd381a990ab3b1b1dc37136cc698f3aacc806e9193f0b49a226829c79c937c7e3aa7188ea706621970740815a
ripemd-160
045a31464c0697ab23deaeb54fc1d599b115dd1f
Diameter
1326
Circumference
4165.7518586601
Area
1380946.7411458
Volume
1220756919.1729
Surface area
5523786.9645832
Circumference
4165.7518586601
Perimeter
2652
Area
439569
Diagonal
937.62359185336
Surface area
2637414
Volume
291434247
Space diagonal
1148.3496854182
Perimeter
1989
Area
190338.96035806
Altitude
574.17484270908
Surface area
190338.96035806
Volume
34345855.387283
Height
312.54119728445