1388676868 is an even 10-digits composite number following 1388676867
and preceding 1388676869 . In scientific notation, it is written as 1.388676868 × 10^9.
The sum of its digits is 61. It has a total of 4 prime factors and 12 positive divisors.
There are 671940360 positive integers (up to 1388676868) that are relatively prime to 1388676868.
1388676868 has 12 divisors, whose sum is 2508577792
The reverse of 1388676868 is 8686768831
Previous prime number is 31
Is Prime? no
Number parity even
Number length 10
Sum of Digits 61
Digital Root 7
Name
one billion three hundred eighty-eight million six hundred seventy-six thousand eight hundred sixty-eight
Scientific notation
1.388676868 × 10^9
Engineering notation
1.388676868 × 10^9
Prime Factorization
2 × 2 × 31 × 11199007
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
694338434
Product of the distinct prime numbers
The prime factorization of 1388676868 is 2 × 2 × 31 × 11199007.
Since it has a total of 4 prime factors.
1 , 4 , 76 , 87 , 47 , 936 , 7739 , 4891 , 6222 , 95239 , 12830 , 84397 , 6631381 , 5141179 , 22068908 , 76763247 , 821415695 , 883433558 , 5018938427 , 2419819860
n×2
2777353736
n×3
4166030604
n×4
5554707472
n×5
6943384340
n÷2
694338434
n÷3
462892289.33333
n÷3
347169217
n÷5
277735373.6
n2
1928423443718289424
n3
2.6779570280005E+27
n4
3.7188169782823E+36
n5
5.1642351140663E+45
2 √n
37264.954957708
3 √n
1115.6648070735
4 √n
193.04132966209
5 √n
67.37832963457
1 , 2 , 4 , 31 , 62 , 124 , 11199007 , 22398014 , 44796028 , 347169217 , 694338434 , 1388676868
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1388676867
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388676868 can be divided by 12 positive divisors.
The sum of these divisors (counting 1388676868) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010110001011000011100000100
3
Ternary
10120210001002112121
4
Quaternary
1102301120130010
5
Quinary
10321000124433
6
Senary
345444055324
8
Octal
12261303404
10
Decimal
1388676868
12
Duodecimal
329094544
16
Hexadecimal
52c58704
20
Vigesimal
11dj4c38
36
Base36
mys5xg
md5
d695ac51d16a75bcfe54e71adc31885b
sha1
a5f8c82f4a3528043cc17a399cce94da666e8b7c
sha256
5a3d15db2e48dba33ad8a2e066caf9bad83c16e74d040c064fa9ac8ffbc5d772
sha512
fc8964f536e9f8ef943f0c9d117421701913c9a04c933d75978c0b394f7794e4a48249870efa498192c5bcb10f376bf864fa597076669f0a8b0575e65be2b870
ripemd-160
e65fc43100e1af158583af47a74f589350aa1836
Diameter
2777353736
Circumference
8725314093.4378
Area
6.0583209237957E+18
Volume
1.1217400167727E+28
Surface area
2.4233283695183E+19
Circumference
8725314093.4378
Perimeter
5554707472
Area
1928423443718289424
Diagonal
1963885660.4794
Surface area
1.157054066231E+19
Volume
2.6779570280005E+27
Space diagonal
2405258890.6716
Perimeter
4166030604
Area
8.3503184575675E+17
Altitude
1202629445.3358
Surface area
8.3503184575675E+17
Volume
3.1560026237089E+26
Height
654628553.49313