1045 is an odd 4-digits composite number following 1044
and preceding 1046 . In scientific notation, it is written as 1.045 × 10^3.
The sum of its digits is 10. It has a total of 3 prime factors and 8 positive divisors.
There are 720 positive integers (up to 1045) that are relatively prime to 1045.
1045 has 8 divisors, whose sum is 1440
The reverse of 1045 is 5401
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 4
Sum of Digits 10
Digital Root 1
Name
one thousand forty-five
Scientific notation
1.045 × 10^3
Engineering notation
1.045 × 10^3
Prime Factorization
5 × 19 × 11
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1045
Product of the distinct prime numbers
The prime factorization of 1045 is 5 × 19 × 11.
Since it has a total of 3 prime factors.
4 , 3 , 42 , 43 , 262 , 324 , 9644 , 6050 , 73190 , 73037 , 111261 , 145886 , 4630818 , 4251749 , 68230161 , 32330188 , 509063016 , 266707442 , 909440114 , 3077274939
n×2
2090
n×3
3135
n×4
4180
n×5
5225
n÷2
522.5
n÷3
348.33333333333
n÷3
261.25
n÷5
209
n2
1092025
n3
1141166125
n4
1192518600625
n5
1246181937653125
2 √n
32.326459750489
3 √n
10.147804616307
4 √n
5.6856362661086
5 √n
4.0162733000683
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
-1044
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 1045 can be divided by 8 positive divisors.
The sum of these divisors (counting 1045) is 1, the average is 0.125.
Base
System
Value
2
Binary
10000010101
3
Ternary
1102201
4
Quaternary
100111
5
Quinary
13140
6
Senary
4501
8
Octal
2025
10
Decimal
1045
12
Duodecimal
731
16
Hexadecimal
415
20
Vigesimal
2c5
36
Base36
t1
md5
a0e2a2c563d57df27213ede1ac4ac780
sha1
ef9cb1abfdb1d45bb08bd2742f179591c8266187
sha256
40794500a2845c943a0f4910461d9c39868a2930f689d2dfa9659625aa7a15cc
sha512
8f84397ce099222a827657b1564c4607ff2c4ca25ad9c1045f9d19e5cea49699202edf79fa5757211a3c0d05f4b072197174d7c358f1b9280f66c41b79c2eaa1
ripemd-160
fe8087b992f3165f230b3e0513c2e4d47cecc790
Diameter
2090
Circumference
6565.9286460027
Area
3430697.7175364
Volume
4780105486.434
Surface area
13722790.870146
Circumference
6565.9286460027
Perimeter
4180
Area
1092025
Diagonal
1477.8531726799
Surface area
6552150
Volume
1141166125
Space diagonal
1809.9930939095
Perimeter
3135
Area
472860.69578385
Altitude
904.99654695474
Surface area
472860.69578385
Volume
134487717.57465
Height
492.61772422663