71688891 is an odd 8-digits composite number following 71688890
and preceding 71688892 . In scientific notation, it is written as 7.1688891 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 47040000 positive integers (up to 71688891) that are relatively prime to 71688891.
71688891 has 16 divisors, whose sum is 97102368
The reverse of 71688891 is 19888617
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
seventy-one million six hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
7.1688891 × 10^7
Engineering notation
7.1688891 × 10^6
Prime Factorization
3 × 101 × 197 × 1201
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71688891
Product of the distinct prime numbers
The prime factorization of 71688891 is 3 × 101 × 197 × 1201.
Since it has a total of 4 prime factors.
4 , 5 , 61 , 21 , 214 , 569 , 2129 , 3215 , 35221 , 61603 , 614896 , 726185 , 708025 , 4793614 , 10505707 , 92581747 , 465168209 , 584506731 , 1398711846 , 6004624316
n×2
143377782
n×3
215066673
n×4
286755564
n×5
358444455
n÷2
35844445.5
n÷3
23896297
n÷3
17922222.75
n÷5
14337778.2
n2
5139297092809881
n3
3.6843050910306E+23
n4
2.6412374608164E+31
n5
1.8934738443358E+39
2 √n
8466.9292544582
3 √n
415.41670246223
4 √n
92.015918484022
5 √n
37.246920537183
1 , 3 , 101 , 197 , 303 , 591 , 1201 , 3603 , 19897 , 59691 , 121301 , 236597 , 363903 , 709791 , 23896297 , 71688891
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
-71688890
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 71688891 can be divided by 16 positive divisors.
The sum of these divisors (counting 71688891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001011110001010111011
3
Ternary
11222220011200010
4
Quaternary
10101132022323
5
Quinary
121323021031
6
Senary
11040313003
8
Octal
421361273
10
Decimal
71688891
12
Duodecimal
20012763
16
Hexadecimal
445e2bb
20
Vigesimal
128124b
36
Base36
16oji3
md5
fd6ae426bb50e2feb550575918f59e4f
sha1
c0702849f787e78413c6bc7bc6379d6d5658ee84
sha256
8322c7668fdbc20dad1f3239ce0e80953de0af50e7ccb165d2273aaa2d25829f
sha512
9c49c2f0c44e4b44103dd01c340cc86f31ada9d9bb945bc0e50ecc55b0cec611deeb5d9976d1a4aa1ea6ca532488e602c551a3f43a42b401a54e87bce10a5bb6
ripemd-160
c4fc182624d7ea2a0a83f8ef35802a87129844ab
Diameter
143377782
Circumference
450434586.6192
Area
1.6145577991387E+16
Volume
1.5432781076754E+24
Surface area
6.4582311965548E+16
Circumference
450434586.6192
Perimeter
286755564
Area
5139297092809881
Diagonal
101383401.92369
Surface area
30835782556859286
Volume
3.6843050910306E+23
Space diagonal
124168801.55027
Perimeter
215066673
Area
2.2253809199844E+15
Altitude
62084400.775134
Surface area
2.2253809199844E+15
Volume
4.3419951897131E+22
Height
33794467.307896