81263896 is an even 8-digits composite number following 81263895
and preceding 81263897 . In scientific notation, it is written as 8.1263896 × 10^7.
The sum of its digits is 43. It has a total of 6 prime factors and 32 positive divisors.
There are 33703200 positive integers (up to 81263896) that are relatively prime to 81263896.
81263896 has 32 divisors, whose sum is 179758080
The reverse of 81263896 is 69836218
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million two hundred sixty-three thousand eight hundred ninety-six
Scientific notation
8.1263896 × 10^7
Engineering notation
8.1263896 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 31 × 46811
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20315974
Product of the distinct prime numbers
The prime factorization of 81263896 is 2 × 2 × 2 × 7 × 31 × 46811.
Since it has a total of 6 prime factors.
10 , 10 , 74 , 69 , 908 , 47 , 4895 , 5333 , 93749 , 77246 , 287003 , 923280 , 4514871 , 3603017 , 25669469 , 80676634 , 489195939 , 118058443 , 9517399259 , 9128487768
n×2
162527792
n×3
243791688
n×4
325055584
n×5
406319480
n÷2
40631948
n÷3
27087965.333333
n÷3
20315974
n÷5
16252779.2
n2
6603820793098816
n3
5.3665220613302E+23
n4
4.3610449067364E+31
n5
3.5439549975236E+39
2 √n
9014.6489670979
3 √n
433.14424307545
4 √n
94.94550524958
5 √n
38.192626692021
1 , 2 , 4 , 7 , 8 , 14 , 28 , 31 , 56 , 62 , 124 , 217 , 248 , 434 , 868 , 1736 , 46811 , 93622 , 187244 , 327677 , 374488 , 655354 , 1310708 , 1451141 , 2621416 , 2902282 , 5804564 , 10157987 , 11609128 , 20315974 , 40631948 , 81263896
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81263895
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81263896 can be divided by 32 positive divisors.
The sum of these divisors (counting 81263896) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101111111110100011000
3
Ternary
12122220122002221
4
Quaternary
10311333310120
5
Quinary
131300421041
6
Senary
12021433424
8
Octal
465776430
10
Decimal
81263896
12
Duodecimal
2326b874
16
Hexadecimal
4d7fd18
20
Vigesimal
157hjeg
36
Base36
1cdrmg
md5
9ef492fb3637d4377952eecce4dd486c
sha1
21cd76a4cfb32b5134ce570122a416f69cf8a354
sha256
05e04c044b147ff3787a6d049128bea62cda5b2e4932f0ded224a92b4d2bdbcd
sha512
cb39aa0f5bf98928339a4d1ee0c31c04879f04f757b430c555236e98714606f4dd0bd4632f540126e8f880346052efde1409653854d53660fb5eb041a05447ba
ripemd-160
0a52bea1fe4c9769ea1f81a9c6aad6cfa28c82d2
Diameter
162527792
Circumference
510596117.35137
Area
2.0746514889223E+16
Volume
2.247923504427E+24
Surface area
8.2986059556891E+16
Circumference
510596117.35137
Perimeter
325055584
Area
6603820793098816
Diagonal
114924503.85448
Surface area
39622924758592896
Volume
5.3665220613302E+23
Space diagonal
140753196.69299
Perimeter
243791688
Area
2.8595382844317E+15
Altitude
70376598.346497
Surface area
2.8595382844317E+15
Volume
6.3245069015897E+22
Height
38308167.951492