1987421569 is an odd 10-digits composite number following 1987421568
and preceding 1987421570 . In scientific notation, it is written as 1.987421569 × 10^9.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 1680168096 positive integers (up to 1987421569) that are relatively prime to 1987421569.
1987421569 has 8 divisors, whose sum is 2302453760
The reverse of 1987421569 is 9651247891
Previous prime number is 73
Is Prime? no Number parity odd Number length 10 Sum of Digits 52 Digital Root 7
Name
one billion nine hundred eighty-seven million four hundred twenty-one thousand five hundred sixty-nine
Scientific notation
1.987421569 × 10^9
Engineering notation
1.987421569 × 10^9
Prime Factorization
7 × 73 × 3889279
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1987421569 Product of the distinct prime numbers
The prime factorization of 1987421569 is 7 × 73 × 3889279.
Since it has a total of 3 prime factors.
5 , 5 , 93 , 87 , 738 , 392 , 338 , 9035 , 24093 , 84747 , 318318 , 372641 , 9064462 , 5176692 , 86433274 , 74184052 , 181177070 , 567070279 , 3178801574 , 4745670903
n×2
3974843138
n×3
5962264707
n×4
7949686276
n×5
9937107845
n÷2
993710784.5
n÷3
662473856.33333
n÷3
496855392.25
n÷5
397484313.8
n2
3949844492926421761
n3
7.8500061394378E+27
n4
1.5601271518301E+37
n5
3.1006303519297E+46
2 √n44580.506603223
3 √n1257.2741882222
4 √n211.14096382091
5 √n72.386570243783
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
-1987421568 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 1987421569 can be divided by 8 positive divisors.
The sum of these divisors (counting 1987421569) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110011101011010010110000001
3
Ternary
12010111200110212021
4
Quaternary
1312131122112001
5
Quinary
13032234442234
6
Senary
525113201441
8
Octal
16635322601
10
Decimal
1987421569
12
Duodecimal
475700281
16
Hexadecimal
7675a581
20
Vigesimal
1b117di9
36
Base36
wv9cap
md5
379c00f1b7a7d05458c7a2b7a8bae9c3
sha1
fa5744324f044da228c4d94c7cad83b0634d10b9
sha256
8908765c3274ac93b846dd71bebac3f87b6cc352458767cd185a5b5ba5a4146d
sha512
3c2e33786499e6d13396e372e5422bd54461566b578610335603b6d2b814558105b317812f1e1982177f2bb28d6b06dea44b0673141526778326222697537305
ripemd-160
5941e3e70bb36b74f2a2f6f73fbdb0a543de1026
Diameter
3974843138
Circumference
12487338001.513
Area
1.24088024418E+19
Volume
3.288202882439E+28
Surface area
4.9635209767199E+19
Circumference
12487338001.513
Perimeter
7949686276
Area
3949844492926421761
Diagonal
2810638537.0326
Surface area
2.3699066957559E+19
Volume
7.8500061394378E+27
Space diagonal
3442315133.5663
Perimeter
5962264707
Area
1.7103328359362E+18
Altitude
1721157566.7831
Surface area
1.7103328359362E+18
Volume
9.2513209559209E+26
Height
936879512.34421