71781213 is an odd 8-digits composite number following 71781212
and preceding 71781214 . In scientific notation, it is written as 7.1781213 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 39110400 positive integers (up to 71781213) that are relatively prime to 71781213.
71781213 has 32 divisors, whose sum is 114573312
The reverse of 71781213 is 31218717
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-one million seven hundred eighty-one thousand two hundred thirteen
Scientific notation
7.1781213 × 10^7
Engineering notation
7.1781213 × 10^6
Prime Factorization
3 × 7 × 31 × 71 × 1553
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
71781213
Product of the distinct prime numbers
The prime factorization of 71781213 is 3 × 7 × 31 × 71 × 1553.
Since it has a total of 5 prime factors.
7 , 9 , 34 , 68 , 968 , 758 , 6709 , 7345 , 93583 , 37260 , 718604 , 260497 , 842182 , 4916279 , 28280064 , 61411981 , 835795618 , 524359543 , 6134369544 , 652458483
n×2
143562426
n×3
215343639
n×4
287124852
n×5
358906065
n÷2
35890606.5
n÷3
23927071
n÷3
17945303.25
n÷5
14356242.6
n2
5152542539751369
n3
3.6985575353745E+23
n4
2.6548694623947E+31
n5
1.9056975036735E+39
2 √n
8472.3794178495
3 √n
415.59495253033
4 √n
92.04552904867
5 √n
37.256509024741
1 , 3 , 7 , 21 , 31 , 71 , 93 , 213 , 217 , 497 , 651 , 1491 , 1553 , 2201 , 4659 , 6603 , 10871 , 15407 , 32613 , 46221 , 48143 , 110263 , 144429 , 330789 , 337001 , 771841 , 1011003 , 2315523 , 3418153 , 10254459 , 23927071 , 71781213
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71781212
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71781213 can be divided by 32 positive divisors.
The sum of these divisors (counting 71781213) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010001110100101101011101
3
Ternary
12000001212022110
4
Quaternary
10101310231131
5
Quinary
121333444323
6
Senary
11042304233
8
Octal
421645535
10
Decimal
71781213
12
Duodecimal
20058079
16
Hexadecimal
4474b5d
20
Vigesimal
128cd0d
36
Base36
16qiql
md5
83d0ffc5381c9a0212b704f49bed411e
sha1
17149e6538dffd485bff3cceb4652f13e71735d5
sha256
acc9a5e78e46930fd3b79cee583062771c1bf052261ffa4f58e8ef45776761ac
sha512
6c0dd561959314ed443df4c5a222dad762d6e62d33f186160c3cc74a6737146cdc4e4c837a2a850fe7714ad6aa74b2aa29db140d68817d00d4c687e9e476d3b7
ripemd-160
cb933f379e884d6f91d406770a29ce8d5cc45ae7
Diameter
143562426
Circumference
451014662.85313
Area
1.6187189790192E+16
Volume
1.5492481576016E+24
Surface area
6.4748759160767E+16
Circumference
451014662.85313
Perimeter
287124852
Area
5152542539751369
Diagonal
101513964.94819
Surface area
30915255238508214
Volume
3.6985575353745E+23
Space diagonal
124328707.94492
Perimeter
215343639
Area
2.2311163667523E+15
Altitude
62164353.972462
Surface area
2.2311163667523E+15
Volume
4.3587918564532E+22
Height
33837988.316064