72161749 is an odd 8-digits composite number following 72161748
and preceding 72161750 . In scientific notation, it is written as 7.2161749 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 65601580 positive integers (up to 72161749) that are relatively prime to 72161749.
72161749 has 4 divisors, whose sum is 78721920
The reverse of 72161749 is 94716127
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-two million one hundred sixty-one thousand seven hundred forty-nine
Scientific notation
7.2161749 × 10^7
Engineering notation
7.2161749 × 10^6
Prime Factorization
11 × 6560159
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72161749
Product of the distinct prime numbers
The prime factorization of 72161749 is 11 × 6560159.
Since it has a total of 2 prime factors.
8 , 4 , 64 , 97 , 848 , 787 , 7286 , 9849 , 91251 , 80830 , 506046 , 177491 , 1311289 , 2391958 , 82098456 , 63251850 , 387065444 , 901578933 , 9745571926 , 8705868089
n×2
144323498
n×3
216485247
n×4
288646996
n×5
360808745
n÷2
36080874.5
n÷3
24053916.333333
n÷3
18040437.25
n÷5
14432349.8
n2
5207318018739001
n3
3.7576917583142E+23
n4
2.7116160948284E+31
n5
1.9567496001937E+39
2 √n
8494.8071785062
3 √n
416.32806076282
4 √n
92.167278241826
5 √n
37.295927345693
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
-72161748
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 72161749 can be divided by 4 positive divisors.
The sum of these divisors (counting 72161749) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010001100111010101
3
Ternary
12000210012022101
4
Quaternary
10103101213111
5
Quinary
121433133444
6
Senary
11054402101
8
Octal
423214725
10
Decimal
72161749
12
Duodecimal
20200331
16
Hexadecimal
44d19d5
20
Vigesimal
12b0479
36
Base36
16yod1
md5
bbaadc4cef736bcf04f9d5b730fce1f1
sha1
04af200c12e06901ed7ea40b85072c83ade6a1ae
sha256
3fe7f1a599492cd63155f278f2729a251da883f947e355689e20486508c9233a
sha512
b0b5617281e90e565ec0acc53a63b64783b16422928f3138d70b352a22197d31e46bdb516898d2227e94ab3a76c68e0b907b8b90f0751dd159316272a75ed999
ripemd-160
4e2aab2e16697eebd6029a9b3bbe2d4e5743f2cc
Diameter
144323498
Circumference
453405641.05718
Area
1.6359272032576E+16
Volume
1.5740182429833E+24
Surface area
6.5437088130305E+16
Circumference
453405641.05718
Perimeter
288646996
Area
5207318018739001
Diagonal
102052124.12036
Surface area
31243908112434006
Volume
3.7576917583142E+23
Space diagonal
124987815.63103
Perimeter
216485247
Area
2.2548348449062E+15
Altitude
62493907.815516
Surface area
2.2548348449062E+15
Volume
4.4284822065213E+22
Height
34017374.706788