1387661686 is an even 10-digits composite number following 1387661685
and preceding 1387661687 . In scientific notation, it is written as 1.387661686 × 10^9.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 637830144 positive integers (up to 1387661686) that are relatively prime to 1387661686.
1387661686 has 16 divisors, whose sum is 2255189904
The reverse of 1387661686 is 6861667831
Previous prime number is 43
Is Prime? no
Number parity even
Number length 10
Sum of Digits 52
Digital Root 7
Name
one billion three hundred eighty-seven million six hundred sixty-one thousand six hundred eighty-six
Scientific notation
1.387661686 × 10^9
Engineering notation
1.387661686 × 10^9
Prime Factorization
2 × 17 × 43 × 949153
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1387661686
Product of the distinct prime numbers
The prime factorization of 1387661686 is 2 × 17 × 43 × 949153.
Since it has a total of 4 prime factors.
10 , 2 , 50 , 89 , 233 , 843 , 3160 , 1901 , 73787 , 18478 , 460825 , 534938 , 7706011 , 5893362 , 7483013 , 5262473 , 636161420 , 324491248 , 3958474567 , 9085859363
n×2
2775323372
n×3
4162985058
n×4
5550646744
n×5
6938308430
n÷2
693830843
n÷3
462553895.33333
n÷3
346915421.5
n÷5
277532337.2
n2
1925604954792362596
n3
2.6720882181371E+27
n4
3.7079544419209E+36
n5
5.1453863124871E+45
2 √n
37251.331331913
3 √n
1115.392874617
4 √n
193.00603962548
5 √n
67.368475466263
1 , 2 , 17 , 34 , 43 , 86 , 731 , 1462 , 949153 , 1898306 , 16135601 , 32271202 , 40813579 , 81627158 , 693830843 , 1387661686
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
-1387661685
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 1387661686 can be divided by 16 positive divisors.
The sum of these divisors (counting 1387661686) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101101100000100101110110
3
Ternary
10120201010111222021
4
Quaternary
1102231200211312
5
Quinary
10320220133221
6
Senary
345410223354
8
Octal
12255404566
10
Decimal
1387661686
12
Duodecimal
328884b5a
16
Hexadecimal
52b60976
20
Vigesimal
11dche46
36
Base36
my6ely
md5
09175b8cf524fc70f467f3c5392e4db6
sha1
4e138af7924b5edfdb3a382710078eaa885ada0e
sha256
846360908d879649a1bd1e412e6ab2065bf13a17a9df61f14e590bcdd25e097e
sha512
17f70b51fa647487606bb6ef7c5e502094e95282845fcea82060a2256a468f9019ed3f1c4bc0011e276038b9615e7c0d4cdebec3d770555a99bd726f686e687a
ripemd-160
a2a51c1f45fdfde2c23be852b397aff90094a0f4
Diameter
2775323372
Circumference
8718935516.8113
Area
6.0494663796918E+18
Volume
1.1192816954458E+28
Surface area
2.4197865518767E+19
Circumference
8718935516.8113
Perimeter
5550646744
Area
1925604954792362596
Diagonal
1962449976.3267
Surface area
1.1553629728754E+19
Volume
2.6720882181371E+27
Space diagonal
2403500543.8687
Perimeter
4162985058
Area
8.3381140425169E+17
Altitude
1201750271.9343
Surface area
8.3381140425169E+17
Volume
3.1490861649557E+26
Height
654149992.10891