281374987 is an odd 9-digits prime number following 281374986
and preceding 281374988 . In scientific notation, it is written as 2.81374987 × 10^8.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 281374986 positive integers (up to 281374987) that are relatively prime to 281374987.
281374987 has 2 divisors, whose sum is 281374988
The reverse of 281374987 is 789473182
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
two hundred eighty-one million three hundred seventy-four thousand nine hundred eighty-seven
Scientific notation
2.81374987 × 10^8
Engineering notation
2.81374987 × 10^6
Prime Factorization
281374987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
281374987
Product of the distinct prime numbers
The prime factorization of 281374987 is 281374987.
Since it has a total of 1 prime factors.
4 , 7 , 60 , 98 , 328 , 932 , 2358 , 2913 , 92187 , 805 , 576549 , 374082 , 2646958 , 8222547 , 69281188 , 70141633 , 642868303 , 552983877 , 6750996011 , 5114202953
n×2
562749974
n×3
844124961
n×4
1125499948
n×5
1406874935
n÷2
140687493.5
n÷3
93791662.333333
n÷3
70343746.75
n÷5
56274997.4
n2
79171883309250169
n3
2.2276987636906E+25
n4
6.2681871067335E+33
n5
1.7637110656707E+42
2 √n
16774.235809717
3 √n
655.28238858021
4 √n
129.51538831242
5 √n
48.961768662683
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
281374988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
140687494
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
16774.235839525
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999992892
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 281374987 can be divided by 2 positive divisors.
The sum of these divisors (counting 281374987) is 281374988, the average is 140687494.
Base
System
Value
2
Binary
10000110001010111000100001011
3
Ternary
201121110022220211
4
Quaternary
100301113010023
5
Quinary
1034012444422
6
Senary
43530501551
8
Octal
2061270413
10
Decimal
281374987
12
Duodecimal
7a2948b7
16
Hexadecimal
10c5710b
20
Vigesimal
47ibh97
36
Base36
4niubv
md5
5c8a1f45c874cabb9f4db3bf4401bd69
sha1
63dec8f1f0f4388599f92d2a06b1b341dd182f39
sha256
1badc1e07d97dbb1c07788768bda34d33dbd9cc57ecb6c1c39e0e9cdd195e7d2
sha512
4e2f2b8cd01397a2d33a05318a0044eeb3e539079fe19de0f02fd8b92e9a8f20a20b34645b98583e5a0b36f84eeac00cdf367485586be717b6f785047d4e3051
ripemd-160
8897bca573132e77de3020515a55e4bf93391819
Diameter
562749974
Circumference
1767931184.1262
Area
2.4872580697521E+17
Volume
9.3313627605618E+25
Surface area
9.9490322790083E+17
Circumference
1767931184.1262
Perimeter
1125499948
Area
79171883309250169
Diagonal
397924322.72795
Surface area
475031299855501014
Volume
2.2276987636906E+25
Space diagonal
487355773.46303
Perimeter
844124961
Area
3.4282431105634E+16
Altitude
243677886.73152
Surface area
3.4282431105634E+16
Volume
2.6253681704108E+24
Height
132641440.90932