28621831 is an odd 8-digits composite number following 28621830
and preceding 28621832 . In scientific notation, it is written as 2.8621831 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 23868432 positive integers (up to 28621831) that are relatively prime to 28621831.
28621831 has 8 divisors, whose sum is 29997200
The reverse of 28621831 is 13812682
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million six hundred twenty-one thousand eight hundred thirty-one
Scientific notation
2.8621831 × 10^7
Engineering notation
2.8621831 × 10^6
Prime Factorization
49 × 37 × 15787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28621831
Product of the distinct prime numbers
The prime factorization of 28621831 is 49 × 37 × 15787.
Since it has a total of 3 prime factors.
7 , 10 , 90 , 4 , 993 , 725 , 3325 , 4477 , 54414 , 92801 , 490276 , 220429 , 6778663 , 4689506 , 17304236 , 60612519 , 693882716 , 419060016 , 9457822317 , 6853487211
n×2
57243662
n×3
85865493
n×4
114487324
n×5
143109155
n÷2
14310915.5
n÷3
9540610.3333333
n÷3
7155457.75
n÷5
5724366.2
n2
819209209792561
n3
2.3447267556326E+22
n4
6.7110372940895E+29
n5
1.9208217526613E+37
2 √n
5349.9374762702
3 √n
305.89036968707
4 √n
73.143266786972
5 √n
30.998414600479
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28621830
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28621831 can be divided by 8 positive divisors.
The sum of these divisors (counting 28621831) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101001011110000000111
3
Ternary
1222212010202211
4
Quaternary
1231023300013
5
Quinary
24311344311
6
Senary
2501244251
8
Octal
155136007
10
Decimal
28621831
12
Duodecimal
9703687
16
Hexadecimal
1b4bc07
20
Vigesimal
8ihebb
36
Base36
h1gqv
md5
ab4a272caf12ac6da5097141efb1f92d
sha1
aaae2a3478a20cab24553ad22ef8070d17974250
sha256
ab3deaff3adca1df9c547f0e89da10882fa87fb9dc2d32dffb581b19015d4255
sha512
246b7f80c97241ad9d46a6db69e9d278f79131efdaadca9fbca23d0862f1aeba0992fa9c0635da7ea9d20468edc099e4ade29d3f6ee3e9f4f0fda2348e33d062
ripemd-160
38708da7ae7419a9d53892e08710b717ed479a45
Diameter
57243662
Circumference
179836268.00378
Area
2.5736216352374E+15
Volume
9.8215684668945E+22
Surface area
1.029448654095E+16
Circumference
179836268.00378
Perimeter
114487324
Area
819209209792561
Diagonal
40477381.580151
Surface area
4915255258755366
Volume
2.3447267556326E+22
Space diagonal
49574465.49765
Perimeter
85865493
Area
3.5472799334727E+14
Altitude
24787232.748825
Surface area
3.5472799334727E+14
Volume
2.7632869815623E+21
Height
13492460.526717