61891 is an odd 5-digits composite number following 61890
and preceding 61892 . In scientific notation, it is written as 6.1891 × 10^4.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 60784 positive integers (up to 61891) that are relatively prime to 61891.
61891 has 4 divisors, whose sum is 63000
The reverse of 61891 is 19816
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 25
Digital Root 7
Name
sixty-one thousand eight hundred ninety-one
Scientific notation
6.1891 × 10^4
Engineering notation
6.1891 × 10^3
Prime Factorization
59 × 1049
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
61891
Product of the distinct prime numbers
The prime factorization of 61891 is 59 × 1049.
Since it has a total of 2 prime factors.
6 , 9 , 75 , 93 , 952 , 903 , 4867 , 6109 , 27085 , 48122 , 942563 , 65544 , 1891130 , 1768424 , 99744689 , 29563064 , 405758069 , 62486978 , 9436474663 , 129505551
n×2
123782
n×3
185673
n×4
247564
n×5
309455
n÷2
30945.5
n÷3
20630.333333333
n÷3
15472.75
n÷5
12378.2
n2
3830495881
n3
237073220570971
n4
1.4672698694358E+19
n5
9.0810799489251E+23
2 √n
248.7790184079
3 √n
39.555708395282
4 √n
15.772730214136
5 √n
9.0850118887502
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
-61890
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 61891 can be divided by 4 positive divisors.
The sum of these divisors (counting 61891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111000111000011
3
Ternary
10010220021
4
Quaternary
33013003
5
Quinary
3440031
6
Senary
1154311
8
Octal
170703
10
Decimal
61891
12
Duodecimal
2b997
16
Hexadecimal
f1c3
20
Vigesimal
7eeb
36
Base36
1br7
md5
10722f67bfcb15fea02a5dcdb40fcc02
sha1
37473e6645e365d1633f3ba200ed316d1116eb0f
sha256
a3701d7ac98115167434a53015d15bc0c46517a46deafceaa233d512b880c388
sha512
929baf107e1157ef6adfbcd40c74b56f557323a0aa533a041bf9f460f6c3ed9a5482d7e34abbd55911141dcd8f5f4d77fa21edd78b4c30333179f9b14fa3a75d
ripemd-160
1e8f269ec2bfe3855fd765ebd99ed145e9dbf3de
Diameter
123782
Circumference
388872.62184665
Area
12033857719.356
Volume
9.9304998414485E+14
Surface area
48135430877.422
Circumference
388872.62184665
Perimeter
247564
Area
3830495881
Diagonal
87527.091588833
Surface area
22982975286
Volume
237073220570971
Space diagonal
107198.35653125
Perimeter
185673
Area
1658653371.0188
Altitude
53599.178265623
Surface area
1658653371.0188
Volume
27939346983911
Height
29175.697196278