82661721 is an odd 8-digits composite number following 82661720
and preceding 82661722 . In scientific notation, it is written as 8.2661721 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 55107812 positive integers (up to 82661721) that are relatively prime to 82661721.
82661721 has 4 divisors, whose sum is 110215632
The reverse of 82661721 is 12716628
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-two million six hundred sixty-one thousand seven hundred twenty-one
Scientific notation
8.2661721 × 10^7
Engineering notation
8.2661721 × 10^6
Prime Factorization
3 × 27553907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
82661721
Product of the distinct prime numbers
The prime factorization of 82661721 is 3 × 27553907.
Since it has a total of 2 prime factors.
4 , 4 , 22 , 87 , 730 , 75 , 4650 , 2209 , 79379 , 22225 , 689737 , 449731 , 1231016 , 5540595 , 3861998 , 56039108 , 627673677 , 338701846 , 4683832504 , 2094626274
n×2
165323442
n×3
247985163
n×4
330646884
n×5
413308605
n÷2
41330860.5
n÷3
27553907
n÷3
20665430.25
n÷5
16532344.2
n2
6832960118681841
n3
5.6482424293461E+23
n4
4.6689343983497E+31
n5
3.8594215260368E+39
2 √n
9091.8491518502
3 √n
435.61365102958
4 √n
95.351188518289
5 √n
38.323122605943
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
-82661720
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 82661721 can be divided by 4 positive divisors.
The sum of these divisors (counting 82661721) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011010101000101011001
3
Ternary
12202112122120020
4
Quaternary
10323111011121
5
Quinary
132130133341
6
Senary
12111421053
8
Octal
473250531
10
Decimal
82661721
12
Duodecimal
23824789
16
Hexadecimal
4ed5159
20
Vigesimal
15gce61
36
Base36
1d7q6x
md5
b51fcb7e65a1aa0691c53a169ceda32d
sha1
bbd971b05d53354be5f78554180e8fbc959a1844
sha256
0df47067f5061086dcc755a3e50165d29036e736dcd8d7c895bde5edab83911f
sha512
c81d886633029274b537c413fdc49c9b63bb065e9c6d37b89edb84152da17cd4d149a3f15db8cf6518df4bc0617277d4780a1458f87dc5920fcf33908a6f8313
ripemd-160
19af136d175c08c7936153b51d286c455058356d
Diameter
165323442
Circumference
519378910.85338
Area
2.1466377311123E+16
Volume
2.3659302562304E+24
Surface area
8.5865509244492E+16
Circumference
519378910.85338
Perimeter
330646884
Area
6832960118681841
Diagonal
116901326.9273
Surface area
40997760712091046
Volume
5.6482424293461E+23
Space diagonal
143174300.61308
Perimeter
247985163
Area
2.9587585229122E+15
Altitude
71587150.306542
Surface area
2.9587585229122E+15
Volume
6.6565175392936E+22
Height
38967108.975767