71387989 is an odd 8-digits prime number following 71387988
and preceding 71387990 . In scientific notation, it is written as 7.1387989 × 10^7.
The sum of its digits is 52. It has a total of 1 prime factors and 2 positive divisors.
There are 71387988 positive integers (up to 71387989) that are relatively prime to 71387989.
71387989 has 2 divisors, whose sum is 71387990
The reverse of 71387989 is 98978317
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 52 Digital Root 7
Name
seventy-one million three hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
7.1387989 × 10^7
Engineering notation
7.1387989 × 10^6
Prime Factorization
71387989
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
71387989 Product of the distinct prime numbers
The prime factorization of 71387989 is 71387989.
Since it has a total of 1 prime factors.
2 , 1 , 7 , 37 , 354 , 318 , 8385 , 7275 , 26682 , 71632 , 968740 , 343912 , 5312630 , 9534596 , 48380650 , 59652996 , 864458131 , 377920548 , 4818796426 , 5601060471
n×2
142775978
n×3
214163967
n×4
285551956
n×5
356939945
n÷2
35693994.5
n÷3
23795996.333333
n÷3
17846997.25
n÷5
14277597.8
n2
5096244973464121
n3
3.6381068010696E+23
n4
2.5971712829558E+31
n5
1.8540683497877E+39
2 √n8449.1413173174
3 √n414.83467358621
4 √n91.919210817529
5 √n37.215600378146
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
71387990 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
35693995 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
8449.141376495 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999719841 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71387989 can be divided by 2 positive divisors.
The sum of these divisors (counting 71387989) is 71387990, the average is 35693995.
Base
System
Value
2
Binary
100010000010100101101010101
3
Ternary
11222022212220121
4
Quaternary
10100110231111
5
Quinary
121233403424
6
Senary
11030031541
8
Octal
420245525
10
Decimal
71387989
12
Duodecimal
1baa85b1
16
Hexadecimal
4414b55
20
Vigesimal
12639j9
36
Base36
16i3bp
md5
c8c717c2c1b12ebd1de569b93f31168e
sha1
c00a3e5f7c7dd0e1929695502816b1b7521e44fc
sha256
3db7117662d99cbefc911ad0c8403d55c021106e63dca2a83514bfdea43ea718
sha512
c202425d3baec2f5eb2e5de851b3d78399607fafae254b64667d804de76511a1b381f3c9f48c1c1f9ee5853005410aed728daa54fb8f9a30b076c7ac822f36f3
ripemd-160
fd03976c790acc1ee11d4472cf58abdf6b6eb411
Diameter
142775978
Circumference
448543963.5939
Area
1.6010325769529E+16
Volume
1.5239266132287E+24
Surface area
6.4041303078115E+16
Circumference
448543963.5939
Perimeter
285551956
Area
5096244973464121
Diagonal
100957862.23434
Surface area
30577469840784726
Volume
3.6381068010696E+23
Space diagonal
123647623.99817
Perimeter
214163967
Area
2.2067388054643E+15
Altitude
61823811.999084
Surface area
2.2067388054643E+15
Volume
4.287549982862E+22
Height
33652620.74478