81126070 is an even 8-digits composite number following 81126069
and preceding 81126071 . In scientific notation, it is written as 8.1126070 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 31403520 positive integers (up to 81126070) that are relatively prime to 81126070.
81126070 has 16 divisors, whose sum is 150738048
The reverse of 81126070 is 07062118
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million one hundred twenty-six thousand seventy
Scientific notation
8.1126070 × 10^7
Engineering notation
8.1126070 × 10^6
Prime Factorization
2 × 5 × 31 × 261697
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81126070
Product of the distinct prime numbers
The prime factorization of 81126070 is 2 × 5 × 31 × 261697.
Since it has a total of 4 prime factors.
6 , 3 , 3 , 14 , 56 , 648 , 961 , 7651 , 84378 , 15271 , 121223 , 519029 , 2881217 , 1108739 , 6895158 , 29975436 , 152720671 , 276309765 , 9078982092 , 2565828243
n×2
162252140
n×3
243378210
n×4
324504280
n×5
405630350
n÷2
40563035
n÷3
27042023.333333
n÷3
20281517.5
n÷5
16225214
n2
6581439233644900
n3
5.3392629996942E+23
n4
4.331534238616E+31
n5
3.5140034984936E+39
2 √n
9007.0011657599
3 √n
432.89922930594
4 √n
94.905222015229
5 √n
38.179662726516
1 , 2 , 5 , 10 , 31 , 62 , 155 , 310 , 261697 , 523394 , 1308485 , 2616970 , 8112607 , 16225214 , 40563035 , 81126070
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
-81126069
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 81126070 can be divided by 16 positive divisors.
The sum of these divisors (counting 81126070) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101011110001010110110
3
Ternary
12122122122001021
4
Quaternary
10311132022312
5
Quinary
131232013240
6
Senary
12014451354
8
Octal
465361266
10
Decimal
81126070
12
Duodecimal
23203b5a
16
Hexadecimal
4d5e2b6
20
Vigesimal
1570f3a
36
Base36
1cat9y
md5
40778c91c8b56d64570f60079fa066c4
sha1
a3475c2571b9d450aaba930a8fefe1387acc34b0
sha256
d73de9fe39fa068870977cecab9cbfc721a501a0fc3923a43f7e3d44769a1570
sha512
23f4241be695fbbce69f40d035a44a4094cd82cb1c09fc77fa030db40922f2217b77c719f63f11c3717bc88d05c29e71e4181a5806e9aac1b10ecfdb49f89f9c
ripemd-160
53c38403c8983d2ae7e411185061e2258babd2d5
Diameter
162252140
Circumference
509730131.05322
Area
2.0676201146466E+16
Volume
2.2365052553898E+24
Surface area
8.2704804585866E+16
Circumference
509730131.05322
Perimeter
324504280
Area
6581439233644900
Diagonal
114729588.45603
Surface area
39488635401869400
Volume
5.3392629996942E+23
Space diagonal
140514475.05839
Perimeter
243378210
Area
2.8498467849E+15
Altitude
70257237.529195
Surface area
2.8498467849E+15
Volume
6.2923817893704E+22
Height
38243196.15201