245891 is an odd 6-digits composite number following 245890
and preceding 245892 . In scientific notation, it is written as 2.45891 × 10^5.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 231840 positive integers (up to 245891) that are relatively prime to 245891.
245891 has 8 divisors, whose sum is 260400
The reverse of 245891 is 198542
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2
Name
two hundred forty-five thousand eight hundred ninety-one
Scientific notation
2.45891 × 10^5
Engineering notation
2.45891 × 10^3
Prime Factorization
29 × 139 × 61
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
245891
Product of the distinct prime numbers
The prime factorization of 245891 is 29 × 139 × 61.
Since it has a total of 3 prime factors.
9 , 10 , 64 , 100 , 514 , 712 , 7369 , 5082 , 80243 , 47106 , 29451 , 124590 , 9879541 , 6198467 , 51226565 , 60095069 , 278738019 , 303140214 , 5958896562 , 5510270735
n×2
491782
n×3
737673
n×4
983564
n×5
1229455
n÷2
122945.5
n÷3
81963.666666667
n÷3
61472.75
n÷5
49178.2
n2
60462383881
n3
14867156034882971
n4
3.6556998645734E+21
n5
8.9890369539982E+26
2 √n
495.87397592534
3 √n
62.649009788327
4 √n
22.268227947579
5 √n
11.97149880831
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
-245890
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 245891 can be divided by 8 positive divisors.
The sum of these divisors (counting 245891) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100000010000011
3
Ternary
110111022002
4
Quaternary
330002003
5
Quinary
30332031
6
Senary
5134215
8
Octal
740203
10
Decimal
245891
12
Duodecimal
ba36b
16
Hexadecimal
3c083
20
Vigesimal
1aeeb
36
Base36
59qb
md5
2057d5d1474f5f504a0b1ff662aaebc4
sha1
595c8c074f5502737fc30fd3ff84558080d0954f
sha256
c731f6fd79180b8690a861f763bb93ff3acce244f2348995663dceaf12cc19bb
sha512
a72285559e918e3dba4f05e7e710d8a0f7126b0c800aee7fe80e199074723f969d260cc8075c506beb393393e1f26a323f51c96317dbb31c56523accbd9242c7
ripemd-160
81a1318c73da33f3f9999b31fbe484addb5b56ef
Diameter
491782
Circumference
1544978.7183677
Area
189948181019.08
Volume
6.2275397571949E+16
Surface area
759792724076.3
Circumference
1544978.7183677
Perimeter
983564
Area
60462383881
Diagonal
347742.38706548
Surface area
362774303286
Volume
14867156034882971
Space diagonal
425895.70512392
Perimeter
737673
Area
26180980207.156
Altitude
212947.85256196
Surface area
26180980207.156
Volume
1.7521111415374E+15
Height
115914.12902183