81573460 is an even 8-digits composite number following 81573459
and preceding 81573461 . In scientific notation, it is written as 8.1573460 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 30911904 positive integers (up to 81573460) that are relatively prime to 81573460.
81573460 has 12 divisors, whose sum is 144256896
The reverse of 81573460 is 06437518
Previous prime number is 95
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million five hundred seventy-three thousand four hundred sixty
Scientific notation
8.1573460 × 10^7
Engineering notation
8.1573460 × 10^6
Prime Factorization
2 × 2 × 95 × 214667
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40786730
Product of the distinct prime numbers
The prime factorization of 81573460 is 2 × 2 × 95 × 214667.
Since it has a total of 4 prime factors.
7 , 6 , 57 , 29 , 388 , 719 , 23 , 2924 , 24383 , 67043 , 229790 , 380470 , 8153381 , 130401 , 72698293 , 58920482 , 977078682 , 665848117 , 763383369 , 4060679162
n×2
163146920
n×3
244720380
n×4
326293840
n×5
407867300
n÷2
40786730
n÷3
27191153.333333
n÷3
20393365
n÷5
16314692
n2
6654229376371600
n3
5.4280851386427E+23
n4
4.4278768593367E+31
n5
3.6119723587003E+39
2 √n
9031.8026993508
3 √n
433.69354795217
4 √n
95.035796936474
5 √n
38.221680401193
1 , 2 , 4 , 95 , 190 , 380 , 214667 , 429334 , 858668 , 20393365 , 40786730 , 81573460
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81573459
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81573460 can be divided by 12 positive divisors.
The sum of these divisors (counting 81573460) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110111001011011001010100
3
Ternary
12200111100202021
4
Quaternary
10313023121110
5
Quinary
131340322320
6
Senary
12032222524
8
Octal
467133124
10
Decimal
81573460
12
Duodecimal
2339aa44
16
Hexadecimal
4dcb654
20
Vigesimal
159gdd0
36
Base36
1ckehg
md5
827f720872cc06cd19c8206b41cd3b4e
sha1
9acff2617f225400bd98126d1114bb452a26f707
sha256
444edf065ccdfa0b2a0bf69c8fe1cd0772cd89196df233a261c34a895dc077c6
sha512
21901f8fae1ff8bc73b77cd60082d79fadef7ae9f66f5786bd37336141ccf3cb28fb2d39efc749e9733f9743b3f4549f206332d603b96916ba9c5d82679125a1
ripemd-160
51ca1d7ca1ee0ddacd649cf20900f46ddf7197ff
Diameter
163146920
Circumference
512541165.3278
Area
2.090487812411E+16
Volume
2.2737109859493E+24
Surface area
8.3619512496442E+16
Circumference
512541165.3278
Perimeter
326293840
Area
6654229376371600
Diagonal
115362293.4617
Surface area
39925376258229600
Volume
5.4280851386427E+23
Space diagonal
141289377.26919
Perimeter
244720380
Area
2.8813658412732E+15
Altitude
70644688.634594
Surface area
2.8813658412732E+15
Volume
6.397059683987E+22
Height
38454097.820566