71388138 is an even 8-digits composite number following 71388137
and preceding 71388139 . In scientific notation, it is written as 7.1388138 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 23346960 positive integers (up to 71388138) that are relatively prime to 71388138.
71388138 has 16 divisors, whose sum is 145470816
The reverse of 71388138 is 83188317
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-one million three hundred eighty-eight thousand one hundred thirty-eight
Scientific notation
7.1388138 × 10^7
Engineering notation
7.1388138 × 10^6
Prime Factorization
2 × 3 × 53 × 224491
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71388138
Product of the distinct prime numbers
The prime factorization of 71388138 is 2 × 3 × 53 × 224491.
Since it has a total of 4 prime factors.
3 , 8 , 88 , 21 , 602 , 245 , 3207 , 6386 , 94904 , 94725 , 752285 , 218952 , 5530006 , 2531344 , 19595766 , 23302485 , 295082649 , 253076435 , 8904312480 , 8716513527
n×2
142776276
n×3
214164414
n×4
285552552
n×5
356940690
n÷2
35694069
n÷3
23796046
n÷3
17847034.5
n÷5
14277627.6
n2
5096266247107044
n3
3.6381295813322E+23
n4
2.5971929661403E+31
n5
1.8540876987945E+39
2 √n
8449.1501347769
3 √n
414.83496219836
4 √n
91.919258780611
5 √n
37.215615913308
1 , 2 , 3 , 6 , 53 , 106 , 159 , 318 , 224491 , 448982 , 673473 , 1346946 , 11898023 , 23796046 , 35694069 , 71388138
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
-71388137
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 71388138 can be divided by 16 positive divisors.
The sum of these divisors (counting 71388138) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010000010100101111101010
3
Ternary
11222022220010010
4
Quaternary
10100110233222
5
Quinary
121233410023
6
Senary
11030032350
8
Octal
420245752
10
Decimal
71388138
12
Duodecimal
1baa86b6
16
Hexadecimal
4414bea
20
Vigesimal
1263a6i
36
Base36
16i3fu
md5
b22069183c9b302c09231c58b1c0f45b
sha1
06de8c5bea478d9ab6fa876a6955a260e153aaec
sha256
2b3d80118e3cad516615f22b4558fba542b0c9f5e13ba0c446253bd0fb2d8ad8
sha512
b2eee1ce97b1a3269b38cca1bbf8d3c8d0b9845ace9eabc68606f680154ac3d099c40535478f24296340a5d6c2c31a53baa1f9fde33f765aa13b4037b2b2bd2f
ripemd-160
188651a423e511c1a3c3f3aea0f58a9d5dee402e
Diameter
142776276
Circumference
448544899.78851
Area
1.6010392602649E+16
Volume
1.5239361554028E+24
Surface area
6.4041570410596E+16
Circumference
448544899.78851
Perimeter
285552552
Area
5096266247107044
Diagonal
100958072.95216
Surface area
30577597482642264
Volume
3.6381295813322E+23
Space diagonal
123647882.07374
Perimeter
214164414
Area
2.2067480172219E+15
Altitude
61823941.036869
Surface area
2.2067480172219E+15
Volume
4.287576829659E+22
Height
33652690.984054