81042007 is an odd 8-digits prime number following 81042006
and preceding 81042008 . In scientific notation, it is written as 8.1042007 × 10^7.
The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors.
There are 81042006 positive integers (up to 81042007) that are relatively prime to 81042007.
81042007 has 2 divisors, whose sum is 81042008
The reverse of 81042007 is 70024018
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million forty-two thousand seven
Scientific notation
8.1042007 × 10^7
Engineering notation
8.1042007 × 10^6
Prime Factorization
81042007
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81042007
Product of the distinct prime numbers
The prime factorization of 81042007 is 81042007.
Since it has a total of 1 prime factors.
10 , 7 , 15 , 1 , 353 , 711 , 243 , 8803 , 13906 , 50430 , 583098 , 343551 , 1062874 , 5760763 , 71929183 , 24175204 , 644663690 , 263800337 , 8857815148 , 9429973216
n×2
162084014
n×3
243126021
n×4
324168028
n×5
405210035
n÷2
40521003.5
n÷3
27014002.333333
n÷3
20260501.75
n÷5
16208401.4
n2
6567806898588049
n3
5.3226825265002E+23
n4
4.3136087457141E+31
n5
3.4958351016542E+39
2 √n
9002.3334197307
3 √n
432.74965394107
4 √n
94.88062720983
5 √n
38.171747075997
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81042008
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40521004
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9002.3334752718
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753214
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81042007 can be divided by 2 positive divisors.
The sum of these divisors (counting 81042007) is 81042008, the average is 40521004.
Base
System
Value
2
Binary
100110101001001101001010111
3
Ternary
12122111100201211
4
Quaternary
10311021221113
5
Quinary
131221321012
6
Senary
12013002251
8
Octal
465115127
10
Decimal
81042007
12
Duodecimal
23183387
16
Hexadecimal
4d49a57
20
Vigesimal
156a507
36
Base36
1c90ev
md5
253fef4e6a6da27a73416cb52525bc1d
sha1
3014dd095f2af987909613f25d9d7b18d28bbe9f
sha256
13dfbfdb75f624d37f42c8d17c675c5bf3cbe47f90bcd5467c3f3b28f940c354
sha512
54aea870c6cc783cb1889af782dd8e157b34fc4d1242a04383897056d5cd4bf015c2b2a6926999a1dfd78951df0e67a196ba79ffff010e0e53a07a81bcd00844
ripemd-160
6cfd7fab1ac6d49bb6b174e2f41b0eb9beab78a8
Diameter
162084014
Circumference
509201947.64675
Area
2.0633373902801E+16
Volume
2.2295600430192E+24
Surface area
8.2533495611202E+16
Circumference
509201947.64675
Perimeter
324168028
Area
6567806898588049
Diagonal
114610705.42134
Surface area
39406841391528294
Volume
5.3226825265002E+23
Space diagonal
140368873.67135
Perimeter
243126021
Area
2.843943810664E+15
Altitude
70184436.835676
Surface area
2.843943810664E+15
Volume
6.2728415143191E+22
Height
38203568.473778