61791891 is an odd 8-digits composite number following 61791890
and preceding 61791892 . In scientific notation, it is written as 6.1791891 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 12 positive divisors.
There are 35309568 positive integers (up to 61791891) that are relatively prime to 61791891.
61791891 has 12 divisors, whose sum is 95840712
The reverse of 61791891 is 19819716
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-one million seven hundred ninety-one thousand eight hundred ninety-one
Scientific notation
6.1791891 × 10^7
Engineering notation
6.1791891 × 10^6
Prime Factorization
3 × 7 × 7 × 420353
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
8827413
Product of the distinct prime numbers
The prime factorization of 61791891 is 3 × 7 × 7 × 420353.
Since it has a total of 4 prime factors.
4 , 3 , 22 , 32 , 451 , 352 , 1950 , 7519 , 93210 , 27369 , 535507 , 642131 , 1031175 , 9103633 , 51817128 , 5842374 , 434741317 , 961495778 , 8347448619 , 2018279624
n×2
123583782
n×3
185375673
n×4
247167564
n×5
308959455
n÷2
30895945.5
n÷3
20597297
n÷3
15447972.75
n÷5
12358378.2
n2
3818237793355881
n3
2.3593613353913E+23
n4
1.4578939846611E+31
n5
9.0086026189736E+38
2 √n
7860.7818313448
3 √n
395.34582969566
4 √n
88.661050249502
5 √n
36.156492813584
1 , 3 , 7 , 21 , 49 , 147 , 420353 , 1261059 , 2942471 , 8827413 , 20597297 , 61791891
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61791890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61791891 can be divided by 12 positive divisors.
The sum of these divisors (counting 61791891) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11101011101101111010010011
3
Ternary
11022021100112120
4
Quaternary
3223231322103
5
Quinary
111304320031
6
Senary
10044225323
8
Octal
353557223
10
Decimal
61791891
12
Duodecimal
1883b243
16
Hexadecimal
3aede93
20
Vigesimal
j63jeb
36
Base36
10sexf
md5
a90c126b6ca538673840abb2ce2ec34f
sha1
8d626fb8fef990d9520ccf86eef57cd1aa603d39
sha256
72388005f5db3884744a94d625a981711eb71b1f97a590f6fbf62ff94699576e
sha512
f06e59998942f531fc318681a29480867962ced2e411acb3caa7af59796aec9caf54cc8dfc1bec28ba9604b318a17d2b4221a0cd58fbe41fdfae0de9a7e4da47
ripemd-160
3d165116fb600cca67397a69f823f30543497960
Diameter
123583782
Circumference
388249901.63404
Area
1.1995347801266E+16
Volume
9.8828696512387E+23
Surface area
4.7981391205063E+16
Circumference
388249901.63404
Perimeter
247167564
Area
3818237793355881
Diagonal
87386930.29688
Surface area
22909426760135286
Volume
2.3593613353913E+23
Space diagonal
107026694.70776
Perimeter
185375673
Area
1.653345463368E+15
Altitude
53513347.353879
Surface area
1.653345463368E+15
Volume
2.7805339992075E+22
Height
29128976.765627