1989968587 is an odd 10-digits composite number following 1989968586
and preceding 1989968588 . In scientific notation, it is written as 1.989968587 × 10^9.
The sum of its digits is 70. It has a total of 2 prime factors and 4 positive divisors.
There are 1985980176 positive integers (up to 1989968587) that are relatively prime to 1989968587.
1989968587 has 4 divisors, whose sum is 1993957000
The reverse of 1989968587 is 7858699891
Previous prime number is 499
Is Prime? no Number parity odd Number length 10 Sum of Digits 70 Digital Root 7
Name
one billion nine hundred eighty-nine million nine hundred sixty-eight thousand five hundred eighty-seven
Scientific notation
1.989968587 × 10^9
Engineering notation
1.989968587 × 10^9
Prime Factorization
499 × 3987913
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1989968587 Product of the distinct prime numbers
The prime factorization of 1989968587 is 499 × 3987913.
Since it has a total of 2 prime factors.
2 , 10 , 25 , 26 , 176 , 344 , 9724 , 5527 , 94899 , 64016 , 356224 , 479081 , 7718110 , 6304929 , 36527594 , 65033331 , 986985138 , 10347688 , 252978446 , 4214526182
n×2
3979937174
n×3
5969905761
n×4
7959874348
n×5
9949842935
n÷2
994984293.5
n÷3
663322862.33333
n÷3
497492146.75
n÷5
397993717.4
n2
3959974977246776569
n3
7.8802258100271E+27
n4
1.5681401820421E+37
n5
3.1205497022762E+46
2 √n44609.063955658
3 √n1257.8110535123
4 √n211.20857926623
5 √n72.405114417777
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
-1989968586 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 1989968587 can be divided by 4 positive divisors.
The sum of these divisors (counting 1989968587) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110100111001000001011001011
3
Ternary
12010200110212201021
4
Quaternary
1312213020023023
5
Quinary
13033412443322
6
Senary
525243533311
8
Octal
16647101313
10
Decimal
1989968587
12
Duodecimal
47652a237
16
Hexadecimal
769c82cb
20
Vigesimal
1b1h6197
36
Base36
wwrxl7
md5
e5313afa09c955bf94743f168a2c8845
sha1
5647161a5ba6ef453ed52383ca9d28f101d576bf
sha256
335258c8b7c3328590306edf2e8a0a6e3fef005b9aad7a19fa8006f7f17a99be
sha512
bf5759c3a540e27cd2f788e405521e7e05aa8bc70a77ae8ea68a8b1e1f07c568941124becc380c90ec7a424578d2029300cd9e0d414604709eb6d3f3f45a9dd8
ripemd-160
c9d65caea3829648b065acb3416eb483a1c6db7b
Diameter
3979937174
Circumference
12503341387.587
Area
1.2440628296918E+19
Volume
3.3008612684547E+28
Surface area
4.9762513187672E+19
Circumference
12503341387.587
Perimeter
7959874348
Area
3959974977246776569
Diagonal
2814240564.4318
Surface area
2.3759849863481E+19
Volume
7.8802258100271E+27
Space diagonal
3446726698.15
Perimeter
5969905761
Area
1.7147194643232E+18
Altitude
1723363349.075
Surface area
1.7147194643232E+18
Volume
9.2869351792524E+26
Height
938080188.14394