1387661666 is an even 10-digits composite number following 1387661665
and preceding 1387661667 . In scientific notation, it is written as 1.387661666 × 10^9.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 693830832 positive integers (up to 1387661666) that are relatively prime to 1387661666.
1387661666 has 4 divisors, whose sum is 2081492502
The reverse of 1387661666 is 6661667831
Previous prime number is 2
Is Prime? no
Number parity even
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion three hundred eighty-seven million six hundred sixty-one thousand six hundred sixty-six
Scientific notation
1.387661666 × 10^9
Engineering notation
1.387661666 × 10^9
Prime Factorization
2 × 693830833
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1387661666
Product of the distinct prime numbers
The prime factorization of 1387661666 is 2 × 693830833.
Since it has a total of 2 prime factors.
6 , 10 , 61 , 47 , 943 , 761 , 6118 , 6882 , 1213 , 54123 , 895536 , 103321 , 9741826 , 2860566 , 88207632 , 87991103 , 582670091 , 411359767 , 5311102424 , 3358698992
n×2
2775323332
n×3
4162984998
n×4
5550646664
n×5
6938308330
n÷2
693830833
n÷3
462553888.66667
n÷3
346915416.5
n÷5
277532333.2
n2
1925604899285895556
n3
2.6720881026008E+27
n4
3.7079542281538E+36
n5
5.1453859416917E+45
2 √n
37251.331063467
3 √n
1115.3928692584
4 √n
193.00603893005
5 √n
67.36847527207
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
-1387661665
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 1387661666 can be divided by 4 positive divisors.
The sum of these divisors (counting 1387661666) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101101100000100101100010
3
Ternary
10120201010111221112
4
Quaternary
1102231200211202
5
Quinary
10320220133131
6
Senary
345410223322
8
Octal
12255404542
10
Decimal
1387661666
12
Duodecimal
328884b42
16
Hexadecimal
52b60962
20
Vigesimal
11dche36
36
Base36
my6ele
md5
64f7638357e317e19c6210b55c5b691c
sha1
9d45ab2b576b4948cb026e0019be206cb224194d
sha256
0f924ae9b67a22ebf15948cb5a2d8581ba46277a6c9eca5d1f0ec6681d5f1a0a
sha512
b54bc3e560d30c1a3934d7e25db32316f145fa6fdebc2dd122d56423272735cdb13feab10d9cbab4d4ccbb81e9f763494b6099cf2563d9a396676b0daf2520e6
ripemd-160
701853319d6dad749301fcaf30613f25d545d74c
Diameter
2775323332
Circumference
8718935391.1475
Area
6.0494662053131E+18
Volume
1.1192816470501E+28
Surface area
2.4197864821252E+19
Circumference
8718935391.1475
Perimeter
5550646664
Area
1925604899285895556
Diagonal
1962449948.0424
Surface area
1.1553629395715E+19
Volume
2.6720881026008E+27
Space diagonal
2403500509.2277
Perimeter
4162984998
Area
8.3381138021668E+17
Altitude
1201750254.6138
Surface area
8.3381138021668E+17
Volume
3.1490860287949E+26
Height
654149982.68081