81551350 is an even 8-digits composite number following 81551349
and preceding 81551351 . In scientific notation, it is written as 8.1551350 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 32620520 positive integers (up to 81551350) that are relatively prime to 81551350.
81551350 has 8 divisors, whose sum is 127220184
The reverse of 81551350 is 05315518
Previous prime number is 25
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million five hundred fifty-one thousand three hundred fifty
Scientific notation
8.1551350 × 10^7
Engineering notation
8.1551350 × 10^6
Prime Factorization
2 × 25 × 1631027
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81551350
Product of the distinct prime numbers
The prime factorization of 81551350 is 2 × 25 × 1631027.
Since it has a total of 3 prime factors.
2 , 9 , 1 , 33 , 278 , 222 , 5727 , 8487 , 35063 , 86390 , 568515 , 482788 , 2446274 , 5836002 , 48679839 , 8763472 , 951955655 , 648653241 , 6462913731 , 2368245821
n×2
163102700
n×3
244654050
n×4
326205400
n×5
407756750
n÷2
40775675
n÷3
27183783.333333
n÷3
20387837.5
n÷5
16310270
n2
6650622686822500
n3
5.42367258451E+23
n4
4.4230782122478E+31
n5
3.607079993644E+39
2 √n
9030.578608262
3 √n
433.65436106133
4 √n
95.029356560286
5 √n
38.219608224801
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
-81551349
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 81551350 can be divided by 8 positive divisors.
The sum of these divisors (counting 81551350) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111000101111111110110
3
Ternary
12200110020102101
4
Quaternary
10313011333312
5
Quinary
131334120400
6
Senary
12031532314
8
Octal
467057766
10
Decimal
81551350
12
Duodecimal
2338a09a
16
Hexadecimal
4dc5ff6
20
Vigesimal
159di7a
36
Base36
1cjxfa
md5
4699937598ddb7491d0751eeb2472944
sha1
8c5c53a25fc2237c72e4cee87ae5cd3902e7635c
sha256
55d63dd1194207268f6936ed7d98f0f66e16e8805aa6dbdf9fd0617f69f459a4
sha512
1a30cf356eee9f48e3cdf8cf33c910a563d542d5e7886d29069f3d189178f0d3622c842486e4ac2b586a10afca63a34841c926f517256af5fc19dc73219a43c8
ripemd-160
f1c5a4f68341c98169d41359799079f6ca64f88c
Diameter
163102700
Circumference
512402244.10066
Area
2.0893547374719E+16
Volume
2.2718626595964E+24
Surface area
8.3574189498877E+16
Circumference
512402244.10066
Perimeter
326205400
Area
6650622686822500
Diagonal
115331025.19984
Surface area
39903736120935000
Volume
5.42367258451E+23
Space diagonal
141251081.62583
Perimeter
244654050
Area
2.8798040988867E+15
Altitude
70625540.812916
Surface area
2.8798040988867E+15
Volume
6.391859439071E+22
Height
38443675.066612