81559997 is an odd 8-digits prime number following 81559996
and preceding 81559998 . In scientific notation, it is written as 8.1559997 × 10^7.
The sum of its digits is 53. It has a total of 1 prime factors and 2 positive divisors.
There are 81559996 positive integers (up to 81559997) that are relatively prime to 81559997.
81559997 has 2 divisors, whose sum is 81559998
The reverse of 81559997 is 79995518
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 53 Digital Root 8
Name
eighty-one million five hundred fifty-nine thousand nine hundred ninety-seven
Scientific notation
8.1559997 × 10^7
Engineering notation
8.1559997 × 10^6
Prime Factorization
81559997
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81559997 Product of the distinct prime numbers
The prime factorization of 81559997 is 81559997.
Since it has a total of 1 prime factors.
2 , 5 , 68 , 42 , 379 , 83 , 8009 , 6684 , 26957 , 43997 , 44054 , 554008 , 9174884 , 3748159 , 58526755 , 221643 , 327052483 , 401329928 , 4402770644 , 2492045213
n×2
163119994
n×3
244679991
n×4
326239988
n×5
407799985
n÷2
40779998.5
n÷3
27186665.666667
n÷3
20389999.25
n÷5
16311999.4
n2
6652033110640009
n3
5.425398005477E+23
n4
4.4249544505051E+31
n5
3.6089927170833E+39
2 √n9031.057357807
3 √n433.66968750589
4 √n95.03187548295
5 √n38.220418685784
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81559998 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40779999 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9031.0574131715 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999754782 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81559997 can be divided by 2 positive divisors.
The sum of these divisors (counting 81559997) is 81559998, the average is 40779999.
Base
System
Value
2
Binary
100110111001000000110111101
3
Ternary
12200110200021122
4
Quaternary
10313020012331
5
Quinary
131334404442
6
Senary
12032040325
8
Octal
467100675
10
Decimal
81559997
12
Duodecimal
233930a5
16
Hexadecimal
4dc81bd
20
Vigesimal
159ejjh
36
Base36
1ck43h
md5
1171770d4259a72dfc0a3894b1076647
sha1
30f26af6241532a2960b5a82a980566ca1f99f3e
sha256
4ff02b259d6fb60321e485652211940d7ab2197c9569ee6db1dee4f7e5de29e2
sha512
0c299073e87fed691588cd61780e002c535ac869493fae11f3f447ae2f63015943604d37a33cc449b4ae20eca25ac654d953890bca299be20674d5422d1059e9
ripemd-160
83012b7957ed9b9f3883c32a9b346ec395ba4045
Diameter
163119994
Circumference
512456574.80401
Area
2.0897978351823E+16
Volume
2.272585402241E+24
Surface area
8.3591913407291E+16
Circumference
512456574.80401
Perimeter
326239988
Area
6652033110640009
Diagonal
115343253.90451
Surface area
39912198663840054
Volume
5.425398005477E+23
Space diagonal
141266058.66917
Perimeter
244679991
Area
2.8804148303147E+15
Altitude
70633029.334583
Surface area
2.8804148303147E+15
Volume
6.3938928671813E+22
Height
38447751.301503