71781405 is an odd 8-digits composite number following 71781404
and preceding 71781406 . In scientific notation, it is written as 7.1781405 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 37013760 positive integers (up to 71781405) that are relatively prime to 71781405.
71781405 has 16 divisors, whose sum is 79143680
The reverse of 71781405 is 50418717
Previous prime number is 1021
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-one million seven hundred eighty-one thousand four hundred five
Scientific notation
7.1781405 × 10^7
Engineering notation
7.1781405 × 10^6
Prime Factorization
15 × 43 × 1021 × 109
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71781405
Product of the distinct prime numbers
The prime factorization of 71781405 is 15 × 43 × 1021 × 109.
Since it has a total of 4 prime factors.
2 , 4 , 10 , 66 , 36 , 255 , 7698 , 7520 , 78315 , 52952 , 317420 , 137586 , 9773934 , 7393364 , 23316434 , 72653092 , 580088198 , 254629890 , 5745576517 , 5430568944
n×2
143562810
n×3
215344215
n×4
287125620
n×5
358907025
n÷2
35890702.5
n÷3
23927135
n÷3
17945351.25
n÷5
14356281
n2
5152570103774025
n3
3.698587214099E+23
n4
2.6548978674306E+31
n5
1.9057229905567E+39
2 √n
8472.3907487792
3 √n
415.59532307371
4 √n
92.045590599329
5 √n
37.256528955421
1 , 15 , 43 , 109 , 645 , 1021 , 1635 , 4687 , 15315 , 43903 , 70305 , 111289 , 658545 , 1669335 , 4785427 , 71781405
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71781404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71781405 can be divided by 16 positive divisors.
The sum of these divisors (counting 71781405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001110100110000011101
3
Ternary
12000001212120120
4
Quaternary
10101310300131
5
Quinary
121334001110
6
Senary
11042305153
8
Octal
421646035
10
Decimal
71781405
12
Duodecimal
200581b9
16
Hexadecimal
4474c1d
20
Vigesimal
128cda5
36
Base36
16qivx
md5
00165c4f19126a83120af6e5fd160632
sha1
e2d092ceee3cfa1baaaa53d2c563bae3c8d2496a
sha256
d6d4cac1d94627ae6627263eeb1a5ca8e45ff8f115d3c1133cc9c4b143f5807c
sha512
b8e26e313910fcbbed505b210cd2a5716952cd86e6d886a432478f7b50516a1200f207f7332f1259dc64764c8e49b3770d546b1c737b08918bde65c2a1cd27c5
ripemd-160
c21c2945b7e1f6d241e6df761a90f9682a8573be
Diameter
143562810
Circumference
451015869.22471
Area
1.6187276385123E+16
Volume
1.5492605893966E+24
Surface area
6.4749105540491E+16
Circumference
451015869.22471
Perimeter
287125620
Area
5152570103774025
Diagonal
101514236.4772
Surface area
30915420622644150
Volume
3.698587214099E+23
Space diagonal
124329040.49868
Perimeter
215344215
Area
2.2311283023243E+15
Altitude
62164520.249339
Surface area
2.2311283023243E+15
Volume
4.3588268331654E+22
Height
33838078.825732