61891 (number)

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.

Interesting facts

Basic properties

Name

Name sixty-one thousand eight hundred ninety-one

Notation

Scientific notation 6.1891 × 10^4
Engineering notation 6.1891 × 10^3

Prime Factorization of 61891

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.

Most popular turbo-numbers

Basic calculations (n = 61891)

Multiplication

n×y
n×2 123782
n×3 185673
n×4 247564
n×5 309455

Division

n÷y
n÷2 30945.5
n÷3 20630.333333333
n÷3 15472.75
n÷5 12378.2

Exponentiation

ny
n2 3830495881
n3 237073220570971
n4 1.4672698694358E+19
n5 9.0810799489251E+23

Nth Root

y√n
2√n 248.7790184079
3√n 39.555708395282
4√n 15.772730214136
5√n 9.0850118887502

Divisors of 61891

1, 59, 1049, 61891

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 conversion 61891

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

Cryptographic Hash Functions

md5 10722f67bfcb15fea02a5dcdb40fcc02
sha1 37473e6645e365d1633f3ba200ed316d1116eb0f
sha256 a3701d7ac98115167434a53015d15bc0c46517a46deafceaa233d512b880c388
sha512 929baf107e1157ef6adfbcd40c74b56f557323a0aa533a041bf9f460f6c3ed9a5482d7e34abbd55911141dcd8f5f4d77fa21edd78b4c30333179f9b14fa3a75d
ripemd-160 1e8f269ec2bfe3855fd765ebd99ed145e9dbf3de

61891 as geometric shapes

Circle

Radius = n
Diameter 123782
Circumference 388872.62184665
Area 12033857719.356

Sphere

Radius = n
Volume 9.9304998414485E+14
Surface area 48135430877.422
Circumference 388872.62184665

Square

Length = n
Perimeter 247564
Area 3830495881
Diagonal 87527.091588833

Cube

Length = n
Surface area 22982975286
Volume 237073220570971
Space diagonal 107198.35653125

Equilateral Triangle

Length = n
Perimeter 185673
Area 1658653371.0188
Altitude 53599.178265623

Triangular Pyramid

Length = n
Surface area 1658653371.0188
Volume 27939346983911
Height 29175.697196278