1987639306 is an even 10-digits composite number following 1987639305
and preceding 1987639307 . In scientific notation, it is written as 1.987639306 × 10^9.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 968627520 positive integers (up to 1987639306) that are relatively prime to 1987639306.
1987639306 has 16 divisors, whose sum is 3057563520
The reverse of 1987639306 is 6039367891
Previous prime number is 241
Is Prime? no
Number parity even
Number length 10
Sum of Digits 52
Digital Root 7
Name
one billion nine hundred eighty-seven million six hundred thirty-nine thousand three hundred six
Scientific notation
1.987639306 × 10^9
Engineering notation
1.987639306 × 10^9
Prime Factorization
2 × 47 × 241 × 87739
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1987639306
Product of the distinct prime numbers
The prime factorization of 1987639306 is 2 × 47 × 241 × 87739.
Since it has a total of 4 prime factors.
8 , 5 , 39 , 53 , 155 , 145 , 8433 , 2143 , 66730 , 96706 , 384697 , 4843 , 8161377 , 3343359 , 80892845 , 73629607 , 32030003 , 568844236 , 9899907810 , 2930353183
n×2
3975278612
n×3
5962917918
n×4
7950557224
n×5
9938196530
n÷2
993819653
n÷3
662546435.33333
n÷3
496909826.5
n÷5
397527861.2
n2
3950710010756161636
n3
7.8525865039866E+27
n4
1.5608109589089E+37
n5
3.1023292111629E+46
2 √n
44582.948601455
3 √n
1257.3201011641
4 √n
211.146746604
5 √n
72.388156273061
1 , 2 , 47 , 94 , 241 , 482 , 11327 , 22654 , 87739 , 175478 , 4123733 , 8247466 , 21145099 , 42290198 , 993819653 , 1987639306
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1987639305
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1987639306 can be divided by 16 positive divisors.
The sum of these divisors (counting 1987639306) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110011110001111100000001010
3
Ternary
12010112002112112121
4
Quaternary
1312132033200022
5
Quinary
13032313424211
6
Senary
525122001454
8
Octal
16636174012
10
Decimal
1987639306
12
Duodecimal
4757a628a
16
Hexadecimal
7678f80a
20
Vigesimal
1b12ei56
36
Base36
wve0ay
md5
dd595c365e705b8ac8e1b5459d8dc54a
sha1
64cf93961bfc3aa47a92e29402dbc590a551b5ec
sha256
e2c100485cd4150eb77e014dd31c7bea641d28273c93dfb9ad1d7074cd7fa52d
sha512
e6b920daf696567952c0ba0efe801d979154f94e200e50200396265f1a97c708d27a6be364103262255746e7aad7add3b1093b964ff1a3b61da406c9d1e9a3ca
ripemd-160
7cfd1eceba0b36c1558b9b2acf877005b7acd7c6
Diameter
3975278612
Circumference
12488706083.432
Area
1.2411521546255E+19
Volume
3.2892837430137E+28
Surface area
4.9646086185021E+19
Circumference
12488706083.432
Perimeter
7950557224
Area
3950710010756161636
Diagonal
2810946463.651
Surface area
2.3704260064537E+19
Volume
7.8525865039866E+27
Space diagonal
3442692265.1129
Perimeter
5962917918
Area
1.7107076161502E+18
Altitude
1721346132.5565
Surface area
1.7107076161502E+18
Volume
9.2543619447049E+26
Height
936982154.55035