71887905 is an odd 8-digits composite number following 71887904
and preceding 71887906 . In scientific notation, it is written as 7.1887905 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 16 positive divisors.
There are 38339568 positive integers (up to 71887905) that are relatively prime to 71887905.
71887905 has 16 divisors, whose sum is 108869120
The reverse of 71887905 is 50978817
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-one million eight hundred eighty-seven thousand nine hundred five
Scientific notation
7.1887905 × 10^7
Engineering notation
7.1887905 × 10^6
Prime Factorization
3 × 3 × 45 × 3 × 59167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7987545
Product of the distinct prime numbers
The prime factorization of 71887905 is 3 × 3 × 45 × 3 × 59167.
Since it has a total of 5 prime factors.
8 , 7 , 62 , 54 , 187 , 883 , 6027 , 7141 , 41553 , 35854 , 151572 , 371293 , 2119198 , 61642 , 26096330 , 19840725 , 288784923 , 142503440 , 3264423814 , 8000666076
n×2
143775810
n×3
215663715
n×4
287551620
n×5
359439525
n÷2
35943952.5
n÷3
23962635
n÷3
17971976.25
n÷5
14377581
n2
5167870885289025
n3
3.7150741125392E+23
n4
2.6706889487018E+31
n5
1.9199023342882E+39
2 √n
8478.6735401241
3 √n
415.80075710587
4 √n
92.079712967212
5 √n
37.267577687754
1 , 3 , 9 , 27 , 45 , 135 , 405 , 1215 , 59167 , 177501 , 532503 , 1597509 , 2662515 , 7987545 , 23962635 , 71887905
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
-71887904
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 71887905 can be divided by 16 positive divisors.
The sum of these divisors (counting 71887905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010010001110110000100001
3
Ternary
12000021021200000
4
Quaternary
10102032300201
5
Quinary
121400403110
6
Senary
11044450213
8
Octal
422166041
10
Decimal
71887905
12
Duodecimal
200a9969
16
Hexadecimal
448ec21
20
Vigesimal
1295jf5
36
Base36
16st29
md5
8cd9aacb89f432989b5fb046ada4a15f
sha1
8ee31ecbfa1f80d139b2dfa052db379800877772
sha256
078ff06f1f613711523b04220ca2ed4a31f5e909d454b09ade82aa5972fc6311
sha512
2659fbdd7459a25517e897e96cb02dd3105a79122c7ae333e79f61a7248c96970f9f5d6f3f4afe3fdc72a8d0942582071f5b5d2a605ced8bed4f10727d71d9c6
ripemd-160
f4304d09fddefd1cda246b28ff41cd78dbf0a1f4
Diameter
143775810
Circumference
451685028.45992
Area
1.6235345207925E+16
Volume
1.556166605266E+24
Surface area
6.4941380831698E+16
Circumference
451685028.45992
Perimeter
287551620
Area
5167870885289025
Diagonal
101664850.22159
Surface area
31007225311734150
Volume
3.7150741125392E+23
Space diagonal
124513503.90968
Perimeter
215663715
Area
2.2377537350691E+15
Altitude
62256751.954842
Surface area
2.2377537350691E+15
Volume
4.3782568293118E+22
Height
33888283.407196