28955215 is an odd 8-digits composite number following 28955214
and preceding 28955216 . In scientific notation, it is written as 2.8955215 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 23103072 positive integers (up to 28955215) that are relatively prime to 28955215.
28955215 has 8 divisors, whose sum is 34837920
The reverse of 28955215 is 51255982
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million nine hundred fifty-five thousand two hundred fifteen
Scientific notation
2.8955215 × 10^7
Engineering notation
2.8955215 × 10^6
Prime Factorization
5 × 389 × 14887
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28955215
Product of the distinct prime numbers
The prime factorization of 28955215 is 5 × 389 × 14887.
Since it has a total of 3 prime factors.
7 , 2 , 60 , 20 , 686 , 80 , 2458 , 6581 , 37393 , 65257 , 43291 , 739002 , 2836815 , 9933247 , 17628205 , 18917552 , 86064528 , 22670003 , 8010097006 , 517511348
n×2
57910430
n×3
86865645
n×4
115820860
n×5
144776075
n÷2
14477607.5
n÷3
9651738.3333333
n÷3
7238803.75
n÷5
5791043
n2
838404475696225
n3
2.4276181850746E+22
n4
7.0292206486746E+29
n5
2.0353259516481E+37
2 √n
5381.0050176524
3 √n
307.07344739732
4 √n
73.355333941387
5 √n
31.070293717935
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
-28955214
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 28955215 can be divided by 8 positive divisors.
The sum of these divisors (counting 28955215) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110011101001001001111
3
Ternary
2000111002002101
4
Quaternary
1232131021033
5
Quinary
24403031330
6
Senary
2512335531
8
Octal
156351117
10
Decimal
28955215
12
Duodecimal
98445a7
16
Hexadecimal
1b9d24f
20
Vigesimal
90j80f
36
Base36
h8lzj
md5
53cd6860f3c562aa0c600d82d7e10e99
sha1
575f8059af5431860c062611f2a2b0860f0f1684
sha256
5c874efaa5b7f6e548d9ca106929c4833ccaf73cc09992c7ddfc0e7358c6dedd
sha512
62b14f7822c9f7dfce30f47b1bf313b7ee821ab0cd29ea61a88fa178d2eb7755bef7ab1922bc2f777401effcdb51ada04f938670f875118190c682c06f435ad4
ripemd-160
96fa2ee8101ec4c808ebdf6be282d73b67b07664
Diameter
57910430
Circumference
181930981.45423
Area
2.6339253415841E+15
Volume
1.0168783274602E+23
Surface area
1.0535701366336E+16
Circumference
181930981.45423
Perimeter
115820860
Area
838404475696225
Diagonal
40948857.754429
Surface area
5030426854177350
Volume
2.4276181850746E+22
Space diagonal
50151903.52408
Perimeter
86865645
Area
3.6303978729975E+14
Altitude
25075951.76204
Surface area
3.6303978729975E+14
Volume
2.8609754679968E+21
Height
13649619.251476