81403611 is an odd 8-digits composite number following 81403610
and preceding 81403612 . In scientific notation, it is written as 8.1403611 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 54224640 positive integers (up to 81403611) that are relatively prime to 81403611.
81403611 has 8 divisors, whose sum is 108627024
The reverse of 81403611 is 11630418
Previous prime number is 1297
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million four hundred three thousand six hundred eleven
Scientific notation
8.1403611 × 10^7
Engineering notation
8.1403611 × 10^6
Prime Factorization
3 × 1297 × 20921
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81403611
Product of the distinct prime numbers
The prime factorization of 81403611 is 3 × 1297 × 20921.
Since it has a total of 3 prime factors.
1 , 6 , 37 , 42 , 674 , 672 , 112 , 538 , 17515 , 19964 , 575277 , 632605 , 9454113 , 1234641 , 43677613 , 66708637 , 754379480 , 575900828 , 6413337608 , 6508771102
n×2
162807222
n×3
244210833
n×4
325614444
n×5
407018055
n÷2
40701805.5
n÷3
27134537
n÷3
20350902.75
n÷5
16280722.2
n2
6626547883839321
n3
5.3942492620893E+23
n4
4.3911136856815E+31
n5
3.57452510326E+39
2 √n
9022.3949702948
3 √n
433.39233233501
4 √n
94.986288327815
5 √n
38.205750396898
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81403610
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81403611 can be divided by 8 positive divisors.
The sum of these divisors (counting 81403611) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110100001111011011011
3
Ternary
12200011201202120
4
Quaternary
10312201323123
5
Quinary
131314403421
6
Senary
12024432323
8
Octal
466417333
10
Decimal
81403611
12
Duodecimal
233186a3
16
Hexadecimal
4da1edb
20
Vigesimal
158f90b
36
Base36
1cgrff
md5
7b4ea71ec14d479b0c525bf2451fde91
sha1
a6fbea1240117078b9a10e5ff3a67c0ca7f49ddd
sha256
f1899c6d0b9b85526fdf774eec66d3bf9e434d1878dd53edb7fa3182306e36f5
sha512
3f774c3f41366ed1a028a777b1b71c54d3a9a82a3775d2fecda9a6f69d80cdc5fa9002e436996f31f76ef4e8fc8c16594c76ab3ea611c43744000fbcfc2d6806
ripemd-160
4078a8f3f8d15c3008431d6fa819f6991e6df388
Diameter
162807222
Circumference
511473972.58656
Area
2.0817914150531E+16
Volume
2.2595378471216E+24
Surface area
8.3271656602122E+16
Circumference
511473972.58656
Perimeter
325614444
Area
6626547883839321
Diagonal
115122090.70234
Surface area
39759287303035926
Volume
5.3942492620893E+23
Space diagonal
140995190.17157
Perimeter
244210833
Area
2.8693794033994E+15
Altitude
70497595.085786
Surface area
2.8693794033994E+15
Volume
6.3571837210564E+22
Height
38374030.234115