71748891 is an odd 8-digits composite number following 71748890
and preceding 71748892 . In scientific notation, it is written as 7.1748891 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 43059456 positive integers (up to 71748891) that are relatively prime to 71748891.
71748891 has 16 divisors, whose sum is 88084800
The reverse of 71748891 is 19884717
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-one million seven hundred forty-eight thousand eight hundred ninety-one
Scientific notation
7.1748891 × 10^7
Engineering notation
7.1748891 × 10^6
Prime Factorization
9 × 17 × 23 × 20389
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71748891
Product of the distinct prime numbers
The prime factorization of 71748891 is 9 × 17 × 23 × 20389.
Since it has a total of 4 prime factors.
8 , 8 , 32 , 68 , 618 , 963 , 4030 , 9247 , 70425 , 84891 , 681617 , 296137 , 1177253 , 6178427 , 98587505 , 63052860 , 908801890 , 403622024 , 6651599440 , 4161370419
n×2
143497782
n×3
215246673
n×4
286995564
n×5
358744455
n÷2
35874445.5
n÷3
23916297
n÷3
17937222.75
n÷5
14349778.2
n2
5147903359729881
n3
3.6935635703579E+23
n4
2.6500909001118E+31
n5
1.9014108313221E+39
2 √n
8470.4717105956
3 √n
415.5325644476
4 √n
92.035165619428
5 √n
37.253153211187
1 , 9 , 17 , 23 , 153 , 207 , 391 , 3519 , 20389 , 183501 , 346613 , 468947 , 3119517 , 4220523 , 7972099 , 71748891
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
-71748890
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 71748891 can be divided by 16 positive divisors.
The sum of these divisors (counting 71748891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001101100110100011011
3
Ternary
12000000012222100
4
Quaternary
10101230310123
5
Quinary
121331431031
6
Senary
11041454443
8
Octal
421546433
10
Decimal
71748891
12
Duodecimal
20041423
16
Hexadecimal
446cd1b
20
Vigesimal
1288c4b
36
Base36
16ptsr
md5
0063adb9387719ab61a7e0dd2b5feb4b
sha1
28f8f5626001c37cfd0424dd1da1bea4001dd69a
sha256
1e1a0413c956344373346fce3bfb02da96d40763bc3c54bc99693296bfdd8737
sha512
f3e4ad21c8147055a0e39df03b9e3e606a5b1be1049446a3346504fe3b69929c64245e836a8ee1a7f05853a0c45aeb1d12090a77efe1f25e622cd8186d81c18f
ripemd-160
9df2982676c7809adb068ef5b59cdc444582c0c2
Diameter
143497782
Circumference
450811577.73763
Area
1.6172615376318E+16
Volume
1.5471562904271E+24
Surface area
6.469046150527E+16
Circumference
450811577.73763
Perimeter
286995564
Area
5147903359729881
Diagonal
101468254.73743
Surface area
30887420158379286
Volume
3.6935635703579E+23
Space diagonal
124272724.59872
Perimeter
215246673
Area
2.2291075428767E+15
Altitude
62136362.299361
Surface area
2.2291075428767E+15
Volume
4.3529064122395E+22
Height
33822751.579143