1388021231 is an odd 10-digits composite number following 1388021230
and preceding 1388021232 . In scientific notation, it is written as 1.388021231 × 10^9.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 1298320920 positive integers (up to 1388021231) that are relatively prime to 1388021231.
1388021231 has 8 divisors, whose sum is 1479571200
The reverse of 1388021231 is 1321208831
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 29
Digital Root 2
Name
one billion three hundred eighty-eight million twenty-one thousand two hundred thirty-one
Scientific notation
1.388021231 × 10^9
Engineering notation
1.388021231 × 10^9
Prime Factorization
19 × 79 × 924731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1388021231
Product of the distinct prime numbers
The prime factorization of 1388021231 is 19 × 79 × 924731.
Since it has a total of 3 prime factors.
2 , 5 , 86 , 24 , 21 , 846 , 9070 , 7805 , 84971 , 79667 , 266653 , 333882 , 1667389 , 1880786 , 43894720 , 3961061 , 93557195 , 307080845 , 6821230780 , 757193490
n×2
2776042462
n×3
4164063693
n×4
5552084924
n×5
6940106155
n÷2
694010615.5
n÷3
462673743.66667
n÷3
347005307.75
n÷5
277604246.2
n2
1926602937706755361
n3
2.6741657812439E+27
n4
3.7117988795803E+36
n5
5.1520556500595E+45
2 √n
37256.156954254
3 √n
1115.4891995603
4 √n
193.01854044173
5 √n
67.371966156935
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1388021230
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388021231 can be divided by 8 positive divisors.
The sum of these divisors (counting 1388021231) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101110111000010111101111
3
Ternary
10120201210210011202
4
Quaternary
1102232320113233
5
Quinary
10320313134411
6
Senary
345422040115
8
Octal
12256702757
10
Decimal
1388021231
12
Duodecimal
328a1903b
16
Hexadecimal
52bb85ef
20
Vigesimal
11df2d1b
36
Base36
mye41b
md5
2539714af348d717ae20351bf1f18fa2
sha1
eac7514b03cd10e2b4de7a21cdfda1c6416b0ca3
sha256
af7fb23294c35364075516024df0e62cea0e9eda206193b89701a29827119452
sha512
6640f59cd31c3de402f61468ca56668d716fd08da0f2b2df2fc1c0e4531c00b9e2e81e67d6120839ca86b296bf27f8c5c413cd741fe52ac28d4dea52c39b0693
ripemd-160
20eac2aef6751fc22cfc8dba5673a5dd75cdbf68
Diameter
2776042462
Circumference
8721194604.6725
Area
6.0526016354841E+18
Volume
1.120151943045E+28
Surface area
2.4210406541936E+19
Circumference
8721194604.6725
Perimeter
5552084924
Area
1926602937706755361
Diagonal
1962958449.742
Surface area
1.1559617626241E+19
Volume
2.6741657812439E+27
Space diagonal
2404123294.0763
Perimeter
4164063693
Area
8.3424354352989E+17
Altitude
1202061647.0381
Surface area
8.3424354352989E+17
Volume
3.1515345965577E+26
Height
654319483.24733