28984987 is an odd 8-digits prime number following 28984986
and preceding 28984988 . In scientific notation, it is written as 2.8984987 × 10^7.
The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors.
There are 28984986 positive integers (up to 28984987) that are relatively prime to 28984987.
28984987 has 2 divisors, whose sum is 28984988
The reverse of 28984987 is 78948982
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 55 Digital Root 1
Name
twenty-eight million nine hundred eighty-four thousand nine hundred eighty-seven
Scientific notation
2.8984987 × 10^7
Engineering notation
2.8984987 × 10^6
Prime Factorization
28984987
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28984987 Product of the distinct prime numbers
The prime factorization of 28984987 is 28984987.
Since it has a total of 1 prime factors.
2 , 3 , 16 , 97 , 23 , 21 , 5126 , 8463 , 85581 , 88480 , 626789 , 587836 , 5160386 , 5292780 , 16010163 , 94598828 , 596958173 , 667744985 , 3529333199 , 4257572411
n×2
57969974
n×3
86954961
n×4
115939948
n×5
144924935
n÷2
14492493.5
n÷3
9661662.3333333
n÷3
7246246.75
n÷5
5796997.4
n2
840129471390169
n3
2.4351141806561E+22
n4
7.0581752869832E+29
n5
2.0458111893693E+37
2 √n5383.770704627
3 √n307.17865652925
4 √n73.374182820847
5 √n31.076680440132
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28984988 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14492494 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5383.7707974987 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999309988 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28984987 can be divided by 2 positive divisors.
The sum of these divisors (counting 28984987) is 28984988, the average is 14492494.
Base
System
Value
2
Binary
1101110100100011010011011
3
Ternary
2000112120221001
4
Quaternary
1232210122123
5
Quinary
24410004422
6
Senary
2513125431
8
Octal
156443233
10
Decimal
28984987
12
Duodecimal
9859877
16
Hexadecimal
1ba469b
20
Vigesimal
913297
36
Base36
h98yj
md5
2a2e024eeaf5349f3682541b7d168a58
sha1
8d847800f912cc7a4e3f5ed1693f1f229768bae2
sha256
185d2697615cdac9dcc7fe5eb24175a05b126fd227cff7242b93fcba6ac026cf
sha512
6f2ac7ace92539bff9fb1a999d8a1b875831a6b479609994de85321dec5bf01b0847472a451e88f24c6d61eb6971b183d63487d46f21d2b904313ab762d4309c
ripemd-160
d30dbdcae40e81698f7fe53f3509a60376e700e5
Diameter
57969974
Circumference
182118044.44719
Area
2.6393445753836E+15
Volume
1.0200182427469E+23
Surface area
1.0557378301535E+16
Circumference
182118044.44719
Perimeter
115939948
Area
840129471390169
Diagonal
40990961.720608
Surface area
5040776828341014
Volume
2.4351141806561E+22
Space diagonal
50203470.140723
Perimeter
86954961
Area
3.6378673234594E+14
Altitude
25101735.070362
Surface area
3.6378673234594E+14
Volume
2.8698095835091E+21
Height
13663653.906869