23891 is an odd 5-digits composite number following 23890
and preceding 23892 . In scientific notation, it is written as 2.3891 × 10^4.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20472 positive integers (up to 23891) that are relatively prime to 23891.
23891 has 4 divisors, whose sum is 27312
The reverse of 23891 is 19832
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 23
Digital Root 5
Name
twenty-three thousand eight hundred ninety-one
Scientific notation
2.3891 × 10^4
Engineering notation
2.3891 × 10^3
Prime Factorization
7 × 3413
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
23891
Product of the distinct prime numbers
The prime factorization of 23891 is 7 × 3413.
Since it has a total of 2 prime factors.
10 , 7 , 27 , 17 , 96 , 823 , 8811 , 6535 , 81994 , 29693 , 405573 , 747809 , 1049001 , 4034885 , 43930894 , 66830141 , 220032862 , 569830315 , 3188781012 , 2329256526
n×2
47782
n×3
71673
n×4
95564
n×5
119455
n÷2
11945.5
n÷3
7963.6666666667
n÷3
5972.75
n÷5
4778.2
n2
570779881
n3
13636502136971
n4
325789672554374161
n5
7.7834410669966E+21
2 √n
154.56713751636
3 √n
28.80125701818
4 √n
12.432503268303
5 √n
7.5101198141166
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
-23890
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 23891 can be divided by 4 positive divisors.
The sum of these divisors (counting 23891) is 1, the average is 0.25.
Base
System
Value
2
Binary
101110101010011
3
Ternary
1012202212
4
Quaternary
11311103
5
Quinary
1231031
6
Senary
302335
8
Octal
56523
10
Decimal
23891
12
Duodecimal
119ab
16
Hexadecimal
5d53
20
Vigesimal
2jeb
36
Base36
ifn
md5
bb8054b490d695da02c573c665824b88
sha1
d0790b0a4e0b1707344b3a764a673f10390423e8
sha256
1f0affca8f60a65a426b7b5b91184d94176f912dbc0d67b03be2b6d6d0046394
sha512
f31f3e780dd4cffccc8ca585f5ed4eec7f11c9683da729faa4f11dd9246fcf1ddc6b793a3968fbb8a8cf50609e65a54114b30d8750cb8d5537b534a7c31e87a3
ripemd-160
ffc09573075a4a057402b6520601f3464e047cd2
Diameter
47782
Circumference
150111.58017383
Area
1793157880.9665
Volume
57120446578893
Surface area
7172631523.8658
Circumference
150111.58017383
Perimeter
95564
Area
570779881
Diagonal
33786.976218656
Surface area
3424679286
Volume
13636502136971
Space diagonal
41380.425843628
Perimeter
71673
Area
247154938.45753
Altitude
20690.212921814
Surface area
247154938.45753
Volume
1607077188786.2
Height
11262.325406219