81377892 is an even 8-digits composite number following 81377891
and preceding 81377893 . In scientific notation, it is written as 8.1377892 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 27125928 positive integers (up to 81377892) that are relatively prime to 81377892.
81377892 has 24 divisors, whose sum is 210980000
The reverse of 81377892 is 29877318
Previous prime number is 9
Is Prime? no Number parity even Number length 8 Sum of Digits 45 Digital Root 9
Name
eighty-one million three hundred seventy-seven thousand eight hundred ninety-two
Scientific notation
8.1377892 × 10^7
Engineering notation
8.1377892 × 10^6
Prime Factorization
2 × 2 × 3 × 9 × 753499
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
40688946 Product of the distinct prime numbers
The prime factorization of 81377892 is 2 × 2 × 3 × 9 × 753499.
Since it has a total of 5 prime factors.
6 , 1 , 17 , 20 , 817 , 629 , 2753 , 6083 , 45434 , 38904 , 395265 , 602050 , 42728 , 11651 , 9029456 , 35168446 , 770172408 , 676593586 , 302162221 , 544297571
n×2
162755784
n×3
244133676
n×4
325511568
n×5
406889460
n÷2
40688946
n÷3
27125964
n÷3
20344473
n÷5
16275578.4
n2
6622361306363664
n3
5.3891380317424E+23
n4
4.3855669272023E+31
n5
3.5688819176064E+39
2 √n9020.9695709497
3 √n433.34668492721
4 √n94.978784846668
5 √n38.203335914576
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 27 , 36 , 54 , 108 , 753499 , 1506998 , 2260497 , 3013996 , 4520994 , 6781491 , 9041988 , 13562982 , 20344473 , 27125964 , 40688946 , 81377892
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81377891 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81377892 can be divided by 24 positive divisors.
The sum of these divisors (counting 81377892) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110110011011101001100100
3
Ternary
12200010102111000
4
Quaternary
10312123221210
5
Quinary
131313043032
6
Senary
12024113300
8
Octal
466335144
10
Decimal
81377892
12
Duodecimal
23305830
16
Hexadecimal
4d9ba64
20
Vigesimal
158c4ec
36
Base36
1cg7l0
md5
3e7b1b5b195246b60d3432f4fc566bf3
sha1
1b282796ef206aacd64f0bc1546e2db89f2340c5
sha256
9a598dc40d9e4a009ffe66d30d5e585dd66399f905b054955d883735ca771872
sha512
369316821b2d8edbda017e20508c839e731ae4553eb3c72c382215d0765407c9b96d085698457a2cc7d570bb7a7b7bc0cd0ed914cb9ed903f580180273fcd5c9
ripemd-160
dc280d1752a6a3ce461ad002406b049822f14c57
Diameter
162755784
Circumference
511312375.34365
Area
2.0804761629489E+16
Volume
2.2573968599604E+24
Surface area
8.3219046517958E+16
Circumference
511312375.34365
Perimeter
325511568
Area
6622361306363664
Diagonal
115085718.54373
Surface area
39734167838181984
Volume
5.3891380317424E+23
Space diagonal
140950643.55685
Perimeter
244133676
Area
2.867566562175E+15
Altitude
70475321.778426
Surface area
2.867566562175E+15
Volume
6.3511600783256E+22
Height
38361906.181244