71621390 is an even 8-digits composite number following 71621389
and preceding 71621391 . In scientific notation, it is written as 7.1621390 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 28590240 positive integers (up to 71621390) that are relatively prime to 71621390.
71621390 has 16 divisors, whose sum is 129180960
The reverse of 71621390 is 09312617
Previous prime number is 509
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
seventy-one million six hundred twenty-one thousand three hundred ninety
Scientific notation
7.1621390 × 10^7
Engineering notation
7.1621390 × 10^6
Prime Factorization
2 × 5 × 509 × 14071
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71621390
Product of the distinct prime numbers
The prime factorization of 71621390 is 2 × 5 × 509 × 14071.
Since it has a total of 4 prime factors.
1 , 8 , 15 , 60 , 144 , 43 , 1143 , 1657 , 93073 , 9974 , 272742 , 54516 , 4973320 , 9473272 , 74358360 , 6954806 , 540284995 , 328485692 , 9788177486 , 537516035
n×2
143242780
n×3
214864170
n×4
286485560
n×5
358106950
n÷2
35810695
n÷3
23873796.666667
n÷3
17905347.5
n÷5
14324278
n2
5129623505532100
n3
3.6739076564288E+23
n4
2.6313037308507E+31
n5
1.8845763071572E+39
2 √n
8462.9421597929
3 √n
415.28627849633
4 √n
91.994250688795
5 √n
37.239903684737
1 , 2 , 5 , 10 , 509 , 1018 , 2545 , 5090 , 14071 , 28142 , 70355 , 140710 , 7162139 , 14324278 , 35810695 , 71621390
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
-71621389
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 71621390 can be divided by 16 positive divisors.
The sum of these divisors (counting 71621390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001001101101100001110
3
Ternary
11222202202002002
4
Quaternary
10101031230032
5
Quinary
121313341030
6
Senary
11035032302
8
Octal
421155416
10
Decimal
71621390
12
Duodecimal
1bb9b692
16
Hexadecimal
444db0e
20
Vigesimal
127cd9a
36
Base36
16n3f2
md5
4b54c7009de8d21eebf811225138d04f
sha1
2ed7bca570ced1f9ae6315f2775ee8c73a981508
sha256
cbd41ada67a7f36d431d1c1c193e0ff5023ccca7006aa3fc16fb048293041b45
sha512
754609a7a3cd9f2f79823fc797a985501118583054c2e9f7350da3f70ccdbe8ed3087bfc395c75b86800b30042c3c590c6779206fc421dc80db1d59b9dd4eccd
ripemd-160
39438ced58a26512da4e3506ecfd082dffe37dcb
Diameter
143242780
Circumference
450010465.32778
Area
1.6115187520661E+16
Volume
1.5389228404539E+24
Surface area
6.4460750082645E+16
Circumference
450010465.32778
Perimeter
286485560
Area
5129623505532100
Diagonal
101287941.09401
Surface area
30777741033192600
Volume
3.6739076564288E+23
Space diagonal
124051886.38871
Perimeter
214864170
Area
2.2211921338203E+15
Altitude
62025943.194353
Surface area
2.2211921338203E+15
Volume
4.3297416955233E+22
Height
33762647.031338