1388788257 is an odd 10-digits composite number following 1388788256
and preceding 1388788258 . In scientific notation, it is written as 1.388788257 × 10^9.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 919962960 positive integers (up to 1388788257) that are relatively prime to 1388788257.
1388788257 has 16 divisors, whose sum is 1863548928
The reverse of 1388788257 is 7528878831
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 57
Digital Root 3
Name
one billion three hundred eighty-eight million seven hundred eighty-eight thousand two hundred fifty-seven
Scientific notation
1.388788257 × 10^9
Engineering notation
1.388788257 × 10^9
Prime Factorization
3 × 383 × 283 × 4271
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1388788257
Product of the distinct prime numbers
The prime factorization of 1388788257 is 3 × 383 × 283 × 4271.
Since it has a total of 4 prime factors.
6 , 2 , 29 , 52 , 24 , 746 , 4475 , 4637 , 61592 , 74503 , 770737 , 673154 , 2651102 , 2135676 , 27363197 , 40308828 , 268614371 , 166582385 , 5102930900 , 4530541233
n×2
2777576514
n×3
4166364771
n×4
5555153028
n×5
6943941285
n÷2
694394128.5
n÷3
462929419
n÷3
347197064.25
n÷5
277757651.4
n2
1928732822781098049
n3
2.6786014951689E+27
n4
3.7200103016731E+36
n5
5.1663066228827E+45
2 √n
37266.449482074
3 √n
1115.6946362986
4 √n
193.04520061911
5 √n
67.379410514383
1 , 3 , 283 , 383 , 849 , 1149 , 4271 , 12813 , 108389 , 325167 , 1208693 , 1635793 , 3626079 , 4907379 , 462929419 , 1388788257
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
-1388788256
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 1388788257 can be divided by 16 positive divisors.
The sum of these divisors (counting 1388788257) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010110001110011101000100001
3
Ternary
10120210020202100010
4
Quaternary
1102301303220201
5
Quinary
10321012211012
6
Senary
345450315133
8
Octal
12261635041
10
Decimal
1388788257
12
Duodecimal
329128aa9
16
Hexadecimal
52c73a21
20
Vigesimal
11djiach
36
Base36
myujvl
md5
445deb6bd356532f3c765e446ce1cf86
sha1
11156bc02dcc149215c53eaa7d08165f9af46560
sha256
e3139b4c175df39b32f92eaac0108d315a6009b4cd44fb65cc1c1aa145af8a6a
sha512
8df5903a0d21fa5ddf4f4508a6df0513949b8adf6398452bec9d9f2974db8def22c83f5f412c8a955dd418ff0c200fe61001de585f3d46f4e5e6fb43b4239a7b
ripemd-160
f8ca36169dfdd042e4aca2558ca8c1fad42a50ef
Diameter
2777576514
Circumference
8726013971.1659
Area
6.0592928667866E+18
Volume
1.1220099705489E+28
Surface area
2.4237171467146E+19
Circumference
8726013971.1659
Perimeter
5555153028
Area
1928732822781098049
Diagonal
1964043188.3139
Surface area
1.1572396936687E+19
Volume
2.6786014951689E+27
Space diagonal
2405451822.079
Perimeter
4166364771
Area
8.3516581082065E+17
Altitude
1202725911.0395
Surface area
8.3516581082065E+17
Volume
3.1567621355505E+26
Height
654681062.7713