28370921 is an odd 8-digits composite number following 28370920
and preceding 28370922 . In scientific notation, it is written as 2.8370921 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 27455700 positive integers (up to 28370921) that are relatively prime to 28370921.
28370921 has 4 divisors, whose sum is 29286144
The reverse of 28370921 is 12907382
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million three hundred seventy thousand nine hundred twenty-one
Scientific notation
2.8370921 × 10^7
Engineering notation
2.8370921 × 10^6
Prime Factorization
31 × 915191
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28370921
Product of the distinct prime numbers
The prime factorization of 28370921 is 31 × 915191.
Since it has a total of 2 prime factors.
9 , 10 , 54 , 63 , 541 , 980 , 6618 , 2343 , 49075 , 33273 , 917760 , 408633 , 5761399 , 4912466 , 75357422 , 87516269 , 354267158 , 225359108 , 6159074724 , 4256169178
n×2
56741842
n×3
85112763
n×4
113483684
n×5
141854605
n÷2
14185460.5
n÷3
9456973.6666667
n÷3
7092730.25
n÷5
5674184.2
n2
804909158388241
n3
2.2836014144809E+22
n4
6.4787875325727E+29
n5
1.838091692624E+37
2 √n
5326.4360504938
3 √n
304.99389399225
4 √n
72.982436589181
5 √n
30.943874205308
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
-28370920
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 28370921 can be divided by 4 positive divisors.
The sum of these divisors (counting 28370921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100001110011111101001
3
Ternary
1222101101120212
4
Quaternary
1230032133221
5
Quinary
24230332141
6
Senary
2452030505
8
Octal
154163751
10
Decimal
28370921
12
Duodecimal
9602435
16
Hexadecimal
1b0e7e9
20
Vigesimal
8h6761
36
Base36
gw355
md5
931f8b184962f0a954fccbfd9aa6681f
sha1
de49073f85765e6a044e51d568fe3bfa1bcfabbb
sha256
0521d35436d01b2c5588e098e3045cad18180140afc85545eae6bef93ee74628
sha512
a1ef582841deec986f42e3896afac47d66f1c19e5f42110c39c0061ac93f70d50bac6c600b50526ca8142c2629981d16d12e09782da33c22cfd2533575590fa7
ripemd-160
fac1e2a7d7dbb7a8c141520abce1b39089a6ae5b
Diameter
56741842
Circumference
178259753.97835
Area
2.5286966987996E+15
Volume
9.5655272366141E+22
Surface area
1.0114786795199E+16
Circumference
178259753.97835
Perimeter
113483684
Area
804909158388241
Diagonal
40122541.255216
Surface area
4829454950329446
Volume
2.2836014144809E+22
Space diagonal
49139876.629523
Perimeter
85112763
Area
3.4853588945148E+14
Altitude
24569938.314761
Surface area
3.4853588945148E+14
Volume
2.6912500761778E+21
Height
13374180.418405