81126370 is an even 8-digits composite number following 81126369
and preceding 81126371 . In scientific notation, it is written as 8.1126370 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 29954304 positive integers (up to 81126370) that are relatively prime to 81126370.
81126370 has 16 divisors, whose sum is 157260600
The reverse of 81126370 is 07362118
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million one hundred twenty-six thousand three hundred seventy
Scientific notation
8.1126370 × 10^7
Engineering notation
8.1126370 × 10^6
Prime Factorization
2 × 5 × 13 × 624049
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81126370
Product of the distinct prime numbers
The prime factorization of 81126370 is 2 × 5 × 13 × 624049.
Since it has a total of 4 prime factors.
3 , 10 , 62 , 92 , 478 , 87 , 4397 , 801 , 49571 , 84649 , 833358 , 431539 , 2540818 , 4880227 , 20061830 , 66617671 , 673342960 , 494489339 , 9871165791 , 9094664336
n×2
162252740
n×3
243379110
n×4
324505480
n×5
405631850
n÷2
40563185
n÷3
27042123.333333
n÷3
20281592.5
n÷5
16225274
n2
6581487909376900
n3
5.3393222328664E+23
n4
4.3315983101274E+31
n5
3.5140684719877E+39
2 √n
9007.0178194561
3 √n
432.89976291825
4 √n
94.905309753755
5 √n
38.179690963757
1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 , 624049 , 1248098 , 3120245 , 6240490 , 8112637 , 16225274 , 40563185 , 81126370
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
-81126369
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 81126370 can be divided by 16 positive divisors.
The sum of these divisors (counting 81126370) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101011110001111100010
3
Ternary
12122122122110101
4
Quaternary
10311132033202
5
Quinary
131232020440
6
Senary
12014453014
8
Octal
465361742
10
Decimal
81126370
12
Duodecimal
2320416a
16
Hexadecimal
4d5e3e2
20
Vigesimal
1570fia
36
Base36
1catia
md5
f8038007b27a64b596211f53aeee0fb2
sha1
94de76cfe67c6ffd1832dd2b1340c68892dfcf50
sha256
0206120a7aaf32a44691a6da6416d7982f7e7fe6473631a05492aab446643fe3
sha512
87d5783340cd2af870bfc45da90446207a5e077d05b7500db0b6b47afc867b039b8cad8d90746dc473bd8855e6df0e2130a5ef1efc4ddcf632f41be227bdf06a
ripemd-160
13433622eec22b1db5bd04cd20f4ec8d700b1a28
Diameter
162252740
Circumference
509732016.00881
Area
2.0676354065789E+16
Volume
2.2365300669229E+24
Surface area
8.2705416263154E+16
Circumference
509732016.00881
Perimeter
324505480
Area
6581487909376900
Diagonal
114730012.7201
Surface area
39488927456261400
Volume
5.3393222328664E+23
Space diagonal
140514994.67363
Perimeter
243379110
Area
2.8498678621103E+15
Altitude
70257497.336816
Surface area
2.8498678621103E+15
Volume
6.2924515963332E+22
Height
38243337.573366