81749314 is an even 8-digits composite number following 81749313
and preceding 81749315 . In scientific notation, it is written as 8.1749314 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 39029760 positive integers (up to 81749314) that are relatively prime to 81749314.
81749314 has 16 divisors, whose sum is 128177280
The reverse of 81749314 is 41394718
Previous prime number is 2311
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million seven hundred forty-nine thousand three hundred fourteen
Scientific notation
8.1749314 × 10^7
Engineering notation
8.1749314 × 10^6
Prime Factorization
2 × 23 × 2311 × 769
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81749314
Product of the distinct prime numbers
The prime factorization of 81749314 is 2 × 23 × 2311 × 769.
Since it has a total of 4 prime factors.
5 , 4 , 31 , 69 , 632 , 741 , 1587 , 3109 , 58354 , 15202 , 644493 , 254387 , 795469 , 6318447 , 20294492 , 67857367 , 86905211 , 411417674 , 8592813080 , 4170949303
n×2
163498628
n×3
245247942
n×4
326997256
n×5
408746570
n÷2
40874657
n÷3
27249771.333333
n÷3
20437328.5
n÷5
16349862.8
n2
6682950339470596
n3
5.4632660574779E+23
n4
4.466182523983E+31
n5
3.651073575344E+39
2 √n
9041.5327240463
3 √n
434.00497279585
4 √n
95.086974523571
5 √n
38.238145675342
1 , 2 , 23 , 46 , 769 , 1538 , 2311 , 4622 , 17687 , 35374 , 53153 , 106306 , 1777159 , 3554318 , 40874657 , 81749314
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81749313
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81749314 can be divided by 16 positive divisors.
The sum of these divisors (counting 81749314) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111110110010101000010
3
Ternary
12200211021222101
4
Quaternary
10313312111002
5
Quinary
131411434224
6
Senary
12040101014
8
Octal
467662502
10
Decimal
81749314
12
Duodecimal
2346476a
16
Hexadecimal
4df6542
20
Vigesimal
15aid5e
36
Base36
1co66a
md5
ccdeaacb1895c10fbaf174ef035cced2
sha1
ab3a1ed253f22d8a5e58fdcee1cc667561794f1a
sha256
fb8f3ca9797deaa530b36a6deef4519127185aa27aa74dd34464c1bf881b4611
sha512
386a9fe7e328c9f154094503f087123d29f7051a15f3f435bb2cd9f5dce0ee8d6df68e4a8cadd53ec8e1eb97db86044dcbc37fc3ad7bfb2a8bb07275724d229a
ripemd-160
c1b9e8d57c702c2b48ecccdd31df9aa6ff7acb69
Diameter
163498628
Circumference
513646088.59681
Area
2.0995107690786E+16
Volume
2.2884475347705E+24
Surface area
8.3980430763145E+16
Circumference
513646088.59681
Perimeter
326997256
Area
6682950339470596
Diagonal
115610988.5735
Surface area
40097702036823576
Volume
5.4632660574779E+23
Space diagonal
141593965.3319
Perimeter
245247942
Area
2.8938023831057E+15
Altitude
70796982.665951
Surface area
2.8938023831057E+15
Volume
6.4385207944482E+22
Height
38536996.191166