81402610 is an even 8-digits composite number following 81402609
and preceding 81402611 . In scientific notation, it is written as 8.1402610 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 32561040 positive integers (up to 81402610) that are relatively prime to 81402610.
81402610 has 8 divisors, whose sum is 146524716
The reverse of 81402610 is 01620418
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million four hundred two thousand six hundred ten
Scientific notation
8.1402610 × 10^7
Engineering notation
8.1402610 × 10^6
Prime Factorization
2 × 5 × 8140261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81402610
Product of the distinct prime numbers
The prime factorization of 81402610 is 2 × 5 × 8140261.
Since it has a total of 3 prime factors.
1 , 5 , 79 , 3 , 276 , 354 , 6574 , 9717 , 65407 , 99212 , 401962 , 102845 , 8607721 , 1384263 , 33576216 , 74891511 , 400513754 , 824581136 , 5301665744 , 46402920
n×2
162805220
n×3
244207830
n×4
325610440
n×5
407013050
n÷2
40701305
n÷3
27134203.333333
n÷3
20350652.5
n÷5
16280522
n2
6626384914812100
n3
5.3940502693033E+23
n4
4.3908977039249E+31
n5
3.574305333425E+39
2 √n
9022.3394970484
3 √n
433.39055588841
4 √n
94.985996320765
5 √n
38.20565643511
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
-81402609
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 81402610 can be divided by 8 positive divisors.
The sum of these divisors (counting 81402610) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110100001101011110010
3
Ternary
12200011200101111
4
Quaternary
10312201223302
5
Quinary
131314340420
6
Senary
12024423534
8
Octal
466415362
10
Decimal
81402610
12
Duodecimal
23317baa
16
Hexadecimal
4da1af2
20
Vigesimal
158f6aa
36
Base36
1cgqnm
md5
78362f7d45aa3d3aee46e3e4e43b918a
sha1
d8fa79918f02b99b7ceb3c62033de487b5ca381d
sha256
c21ecce9a926fbf5305ed5b9b70477c9cdbb192d406eb59d1243c565a6fda5a3
sha512
c08b68dc19c53df94a1c510eb34cc64cdbc07748fcbdd3f604fcde657e8d4cd1c6a27dc51918c927a2068657d736e13dcd9286c791745444c7d3442cb0b9f8f8
ripemd-160
2b95c6630cb67119c73c3f807b9110a58f3391ff
Diameter
162805220
Circumference
511467683.11807
Area
2.0817402168232E+16
Volume
2.2594544932183E+24
Surface area
8.3269608672928E+16
Circumference
511467683.11807
Perimeter
325610440
Area
6626384914812100
Diagonal
115120675.07457
Surface area
39758309488872600
Volume
5.3940502693033E+23
Space diagonal
140993456.38871
Perimeter
244207830
Area
2.8693088357406E+15
Altitude
70496728.194357
Surface area
2.8693088357406E+15
Volume
6.3569492058092E+22
Height
38373558.358189