81749300 is an even 8-digits composite number following 81749299
and preceding 81749301 . In scientific notation, it is written as 8.1749300 × 10^7.
The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors.
There are 32509920 positive integers (up to 81749300) that are relatively prime to 81749300.
81749300 has 24 divisors, whose sum is 149647680
The reverse of 81749300 is 00394718
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million seven hundred forty-nine thousand three hundred
Scientific notation
8.1749300 × 10^7
Engineering notation
8.1749300 × 10^6
Prime Factorization
2 × 2 × 25 × 179 × 4567
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40874650
Product of the distinct prime numbers
The prime factorization of 81749300 is 2 × 2 × 25 × 179 × 4567.
Since it has a total of 5 prime factors.
2 , 7 , 66 , 55 , 87 , 30 , 8100 , 1489 , 33689 , 62232 , 423376 , 503280 , 3285733 , 7243074 , 78665110 , 30410419 , 731132895 , 569131443 , 2305547827 , 4286884358
n×2
163498600
n×3
245247900
n×4
326997200
n×5
408746500
n÷2
40874650
n÷3
27249766.666667
n÷3
20437325
n÷5
16349860
n2
6682948050490000
n3
5.4632632506392E+23
n4
4.4661794645548E+31
n5
3.6510704490173E+39
2 √n
9041.5319498412
3 √n
434.00494802063
4 √n
95.086970452535
5 √n
38.238144365645
1 , 2 , 4 , 25 , 50 , 100 , 179 , 358 , 716 , 4475 , 4567 , 8950 , 9134 , 17900 , 18268 , 114175 , 228350 , 456700 , 817493 , 1634986 , 3269972 , 20437325 , 40874650 , 81749300
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
-81749299
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 81749300 can be divided by 24 positive divisors.
The sum of these divisors (counting 81749300) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110111110110010100110100
3
Ternary
12200211021221212
4
Quaternary
10313312110310
5
Quinary
131411434200
6
Senary
12040100552
8
Octal
467662464
10
Decimal
81749300
12
Duodecimal
23464758
16
Hexadecimal
4df6534
20
Vigesimal
15aid50
36
Base36
1co65w
md5
158c2ca426092394b9e5b1ac5cf9581b
sha1
22b7f7de7f2e1f665a468b623233c36b1f023dc4
sha256
f2b335e406278e44b63833bd61a60135690d826d57e0745440d360bde83e9636
sha512
e514821662e1da5cbfdc2f123b16aa51bed857a2bc0bf03619743402515781a20cad78816978b8da6c51417c9c7647bcd6fce7bf8ce7a86448eb681a222ce37e
ripemd-160
86c38b36c6bdc2518a6a73a604549ade08c6ce0c
Diameter
163498600
Circumference
513646000.63222
Area
2.0995100499742E+16
Volume
2.2884463590447E+24
Surface area
8.3980401998966E+16
Circumference
513646000.63222
Perimeter
326997200
Area
6682948050490000
Diagonal
115610968.77451
Surface area
40097688302940000
Volume
5.4632632506392E+23
Space diagonal
141593941.08319
Perimeter
245247900
Area
2.893801391948E+15
Altitude
70796970.541595
Surface area
2.893801391948E+15
Volume
6.4385174865571E+22
Height
38536989.591502