28161880 is an even 8-digits composite number following 28161879
and preceding 28161881 . In scientific notation, it is written as 2.8161880 × 10^7.
The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors.
There are 11072896 positive integers (up to 28161880) that are relatively prime to 28161880.
28161880 has 32 divisors, whose sum is 64443600
The reverse of 28161880 is 08816182
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million one hundred sixty-one thousand eight hundred eighty
Scientific notation
2.8161880 × 10^7
Engineering notation
2.8161880 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 59 × 11933
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
7040470
Product of the distinct prime numbers
The prime factorization of 28161880 is 2 × 2 × 2 × 5 × 59 × 11933.
Since it has a total of 6 prime factors.
8 , 2 , 88 , 3 , 327 , 255 , 420 , 5810 , 41516 , 38092 , 6726 , 897509 , 7957339 , 6484811 , 39920624 , 34728238 , 491792349 , 507880453 , 3539812559 , 6688905089
n×2
56323760
n×3
84485640
n×4
112647520
n×5
140809400
n÷2
14080940
n÷3
9387293.3333333
n÷3
7040470
n÷5
5632376
n2
793091485134400
n3
2.2334947233377E+22
n4
6.2899410379269E+29
n5
1.7713656471717E+37
2 √n
5306.7767995272
3 √n
304.24296711804
4 √n
72.847627274519
5 √n
30.898139436438
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 59 , 118 , 236 , 295 , 472 , 590 , 1180 , 2360 , 11933 , 23866 , 47732 , 59665 , 95464 , 119330 , 238660 , 477320 , 704047 , 1408094 , 2816188 , 3520235 , 5632376 , 7040470 , 14080940 , 28161880
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28161879
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28161880 can be divided by 32 positive divisors.
The sum of these divisors (counting 28161880) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101011011011011101011000
3
Ternary
1221222202211121
4
Quaternary
1223123131120
5
Quinary
24202140010
6
Senary
2443335024
8
Octal
153333530
10
Decimal
28161880
12
Duodecimal
9521474
16
Hexadecimal
1adb758
20
Vigesimal
8g04e0
36
Base36
grlug
md5
d472b2f3c7e9c2cbcd816e1710419c7b
sha1
c8279038a58b68268a3113dd3182cd42a7ac7730
sha256
5efe42c6087eab6f86bea2c1800e0f5073f5e425f7bee0d3e25fba88920de515
sha512
7d8fdaa1dcb16543c8c80b9bafc6918c378229509e98c31c255d6f4b54ec360b19e160acf96eeb115acf0737363167009e876b5b9c7e30205b981feee04c9ab8
ripemd-160
4269274f52f1480bb5f9bc6fad2582d8d8d13d00
Diameter
56323760
Circumference
176946310.63855
Area
2.4915703833228E+15
Volume
9.3556408195589E+22
Surface area
9.9662815332914E+15
Circumference
176946310.63855
Perimeter
112647520
Area
793091485134400
Diagonal
39826912.637924
Surface area
4758548910806400
Volume
2.2334947233377E+22
Space diagonal
48777806.996658
Perimeter
84485640
Area
3.4341868682576E+14
Altitude
24388903.498329
Surface area
3.4341868682576E+14
Volume
2.6321987743607E+21
Height
13275637.545975