81992693 is an odd 8-digits composite number following 81992692
and preceding 81992694 . In scientific notation, it is written as 8.1992693 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 81943008 positive integers (up to 81992693) that are relatively prime to 81992693.
81992693 has 4 divisors, whose sum is 82042380
The reverse of 81992693 is 39629918
Previous prime number is 47977
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million nine hundred ninety-two thousand six hundred ninety-three
Scientific notation
8.1992693 × 10^7
Engineering notation
8.1992693 × 10^6
Prime Factorization
47977 × 1709
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81992693
Product of the distinct prime numbers
The prime factorization of 81992693 is 47977 × 1709.
Since it has a total of 2 prime factors.
10 , 10 , 97 , 86 , 697 , 927 , 438 , 3509 , 49427 , 77192 , 665394 , 470810 , 8948500 , 6562295 , 19736039 , 71699254 , 438623264 , 436041407 , 1108327568 , 2125637233
n×2
163985386
n×3
245978079
n×4
327970772
n×5
409963465
n÷2
40996346.5
n÷3
27330897.666667
n÷3
20498173.25
n÷5
16398538.6
n2
6722801705392249
n3
5.512206163301E+23
n4
4.5196062770025E+31
n5
3.7057468995114E+39
2 √n
9054.9816675684
3 √n
434.43524367068
4 √n
95.157667413448
5 √n
38.260886658543
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81992692
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81992693 can be divided by 4 positive divisors.
The sum of these divisors (counting 81992693) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000110001101111110101
3
Ternary
12201021122211102
4
Quaternary
10320301233311
5
Quinary
131442231233
6
Senary
12045215445
8
Octal
470615765
10
Decimal
81992693
12
Duodecimal
23561585
16
Hexadecimal
4e31bf5
20
Vigesimal
15c91ed
36
Base36
1ctdyt
md5
5428037f9cf3b86bcc9e00f1f0b46bb7
sha1
7563b0ce28eb5bf6167a48c8b51966971d3152b8
sha256
13ef1a224ac1d012869b184149ecef2bd6c3e279f0cdf45cb10ac3117fe12668
sha512
848e1990fc6c3e91e48152425efbf4ba961d522f2d6bd67389e45f84f0cdc723913915094d4980f8fd15d26d9989db33775fc6997b415753f594177040d4287a
ripemd-160
f0a251da1f582464288612783dabf0c201035028
Diameter
163985386
Circumference
515175283.95369
Area
2.1120304449201E+16
Volume
2.3089475183599E+24
Surface area
8.4481217796805E+16
Circumference
515175283.95369
Perimeter
327970772
Area
6722801705392249
Diagonal
115955178.45609
Surface area
40336810232353494
Volume
5.512206163301E+23
Space diagonal
142015510.1254
Perimeter
245978079
Area
2.9110585307375E+15
Altitude
71007755.062699
Surface area
2.9110585307375E+15
Volume
6.4961972622807E+22
Height
38651726.152031