71985655 is an odd 8-digits composite number following 71985654
and preceding 71985656 . In scientific notation, it is written as 7.1985655 × 10^7.
The sum of its digits is 46. It has a total of 5 prime factors and 24 positive divisors.
There are 48206592 positive integers (up to 71985655) that are relatively prime to 71985655.
71985655 has 24 divisors, whose sum is 102838032
The reverse of 71985655 is 55658917
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
seventy-one million nine hundred eighty-five thousand six hundred fifty-five
Scientific notation
7.1985655 × 10^7
Engineering notation
7.1985655 × 10^6
Prime Factorization
5 × 7 × 7 × 43 × 6833
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10283665
Product of the distinct prime numbers
The prime factorization of 71985655 is 5 × 7 × 7 × 43 × 6833.
Since it has a total of 5 prime factors.
3 , 5 , 48 , 64 , 159 , 410 , 917 , 5027 , 87230 , 22186 , 68110 , 172384 , 6486997 , 5621104 , 86740575 , 49761069 , 936628583 , 188787285 , 5145376550 , 2430835208
n×2
143971310
n×3
215956965
n×4
287942620
n×5
359928275
n÷2
35992827.5
n÷3
23995218.333333
n÷3
17996413.75
n÷5
14397131
n2
5181934525779025
n3
3.7302495100532E+23
n4
2.6852445429461E+31
n5
1.9329908725915E+39
2 √n
8484.4360449001
3 √n
415.98913425453
4 √n
92.110998501265
5 √n
37.277707141238
1 , 5 , 7 , 35 , 43 , 49 , 215 , 245 , 301 , 1505 , 2107 , 6833 , 10535 , 34165 , 47831 , 239155 , 293819 , 334817 , 1469095 , 1674085 , 2056733 , 10283665 , 14397131 , 71985655
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71985654
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71985655 can be divided by 24 positive divisors.
The sum of these divisors (counting 71985655) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100010010100110100111110111
3
Ternary
12000110020202101
4
Quaternary
10102212213313
5
Quinary
121412020110
6
Senary
11050522531
8
Octal
422464767
10
Decimal
71985655
12
Duodecimal
20136447
16
Hexadecimal
44a69f7
20
Vigesimal
129i42f
36
Base36
16uwhj
md5
90fe2c55888908e43471897cc6c56c59
sha1
c16492b4cac35faf7285ab3fa251df94271625cb
sha256
5bb6e929d5b6a71ca696662349cc24b1600d8aee3ca2ad271cd99076ca8ba661
sha512
dd43f26693d44b1192678b33ab93865fd17a7b79fd24d745090675df203598e49efb1fd77f05f1216dafaabec1c4984144a669af1fa40fc28c080f94618f3871
ripemd-160
f66b6827412dc805ecfed12b0ce3c8d443f8abb7
Diameter
143971310
Circumference
452299209.8237
Area
1.6279527437571E+16
Volume
1.562523260912E+24
Surface area
6.5118109750283E+16
Circumference
452299209.8237
Perimeter
287942620
Area
5181934525779025
Diagonal
101803089.59731
Surface area
31091607154674150
Volume
3.7302495100532E+23
Space diagonal
124682811.87612
Perimeter
215956965
Area
2.2438434700362E+15
Altitude
62341405.938062
Surface area
2.2438434700362E+15
Volume
4.396141206794E+22
Height
33934363.199104