145891 is an odd 6-digits composite number following 145890
and preceding 145892 . In scientific notation, it is written as 1.45891 × 10^5.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 141912 positive integers (up to 145891) that are relatively prime to 145891.
145891 has 4 divisors, whose sum is 149872
The reverse of 145891 is 198541
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 28
Digital Root 1
Name
one hundred forty-five thousand eight hundred ninety-one
Scientific notation
1.45891 × 10^5
Engineering notation
1.45891 × 10^3
Prime Factorization
37 × 3943
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
145891
Product of the distinct prime numbers
The prime factorization of 145891 is 37 × 3943.
Since it has a total of 2 prime factors.
2 , 3 , 19 , 65 , 241 , 451 , 1213 , 7158 , 69089 , 4082 , 586682 , 62565 , 8171505 , 6972677 , 45821825 , 90332641 , 937361872 , 422044062 , 6286365876 , 8109440911
n×2
291782
n×3
437673
n×4
583564
n×5
729455
n÷2
72945.5
n÷3
48630.333333333
n÷3
36472.75
n÷5
29178.2
n2
21284183881
n3
3105170870582971
n4
4.5301648348022E+20
n5
6.6091027791413E+25
2 √n
381.95680384043
3 √n
52.64326703577
4 √n
19.543715200556
5 √n
10.78464118323
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-145890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 145891 can be divided by 4 positive divisors.
The sum of these divisors (counting 145891) is 1, the average is 0.25.
Base
System
Value
2
Binary
100011100111100011
3
Ternary
21102010101
4
Quaternary
203213203
5
Quinary
14132031
6
Senary
3043231
8
Octal
434743
10
Decimal
145891
12
Duodecimal
70517
16
Hexadecimal
239e3
20
Vigesimal
i4eb
36
Base36
34kj
md5
752c5ca8ef2657345056c5e31fac7837
sha1
fa913c4faa4a3ca953b3aa5faa6419b7c1c63aac
sha256
8428bc1fb6f5a9d63abd1e8c9072c35a92f6eb8a416a4982a5dd05abb03e340c
sha512
724ec9a39a56fe9cae5b5523a7dfdac6d7cb58d7102f5d601e49cc29813702d668f98d140b3fdfcd74128a16283ea9db4813d7e815a5a66deafb4e8372d61892
ripemd-160
454e7ecef8e01899be6cfea1945fa53934416e52
Diameter
291782
Circumference
916660.18764974
Area
66866235718.204
Volume
1.3006909326886E+16
Surface area
267464942872.82
Circumference
916660.18764974
Perimeter
583564
Area
21284183881
Diagonal
206321.03082817
Surface area
127705103286
Volume
3105170870582971
Space diagonal
252690.62436703
Perimeter
437673
Area
9216321969.8826
Altitude
126345.31218352
Surface area
9216321969.8826
Volume
3.6594789655536E+14
Height
68773.676942724