81749295 is an odd 8-digits composite number following 81749294
and preceding 81749296 . In scientific notation, it is written as 8.1749295 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 43599600 positive integers (up to 81749295) that are relatively prime to 81749295.
81749295 has 8 divisors, whose sum is 116265728
The reverse of 81749295 is 59294718
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-one million seven hundred forty-nine thousand two hundred ninety-five
Scientific notation
8.1749295 × 10^7
Engineering notation
8.1749295 × 10^6
Prime Factorization
15 × 3 × 1816651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81749295
Product of the distinct prime numbers
The prime factorization of 81749295 is 15 × 3 × 1816651.
Since it has a total of 3 prime factors.
9 , 8 , 34 , 50 , 70 , 47 , 6343 , 2844 , 47019 , 69082 , 921756 , 495955 , 8029472 , 4343506 , 35860713 , 99052651 , 770268677 , 393512942 , 7470199116 , 5528162485
n×2
163498590
n×3
245247885
n×4
326997180
n×5
408746475
n÷2
40874647.5
n÷3
27249765
n÷3
20437323.75
n÷5
16349859
n2
6682947232997025
n3
5.4632622481971E+23
n4
4.4661783719023E+31
n5
3.6510693324726E+39
2 √n
9041.5316733394
3 √n
434.00493917234
4 √n
95.086968998593
5 √n
38.238143897896
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
-81749294
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 81749295 can be divided by 8 positive divisors.
The sum of these divisors (counting 81749295) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110110010100101111
3
Ternary
12200211021221200
4
Quaternary
10313312110233
5
Quinary
131411434140
6
Senary
12040100543
8
Octal
467662457
10
Decimal
81749295
12
Duodecimal
23464753
16
Hexadecimal
4df652f
20
Vigesimal
15aid4f
36
Base36
1co65r
md5
a28249fe9ad06d2fd525f1e5ec11a53f
sha1
2d4ec9f5db91ba161869bda42286b01cf393e86f
sha256
a7f5eab63165b6723c478374699c80a6f51f1dc06fc674d5ae34461899c68c32
sha512
9e77cf29a3394155d4cf49dc1dee33f9e72e047c4fb72d704edb4b4a0ea91825cef9c294f1684fb9497596aa9f465f404c8bfb7679cf9bfff11bc1f7c8ffe13b
ripemd-160
fa8077afbb5468160483e677437b0fc1acc05ab7
Diameter
163498590
Circumference
513645969.21629
Area
2.0995097931512E+16
Volume
2.2884459391427E+24
Surface area
8.3980391726047E+16
Circumference
513645969.21629
Perimeter
326997180
Area
6682947232997025
Diagonal
115610961.70344
Surface area
40097683397982150
Volume
5.4632622481971E+23
Space diagonal
141593932.42294
Perimeter
245247885
Area
2.8938010379632E+15
Altitude
70796966.211468
Surface area
2.8938010379632E+15
Volume
6.4385163051677E+22
Height
38536987.23448