1388890521 is an odd 10-digits composite number following 1388890520
and preceding 1388890522 . In scientific notation, it is written as 1.388890521 × 10^9.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 923271840 positive integers (up to 1388890521) that are relatively prime to 1388890521.
1388890521 has 8 divisors, whose sum is 1547637000
The reverse of 1388890521 is 1250988831
Previous prime number is 349
Is Prime? no Number parity odd Number length 10 Sum of Digits 45 Digital Root 9
Name
one billion three hundred eighty-eight million eight hundred ninety thousand five hundred twenty-one
Scientific notation
1.388890521 × 10^9
Engineering notation
1.388890521 × 10^9
Prime Factorization
9 × 349 × 442181
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1388890521 Product of the distinct prime numbers
The prime factorization of 1388890521 is 9 × 349 × 442181.
Since it has a total of 3 prime factors.
4 , 6 , 98 , 33 , 94 , 426 , 8760 , 5376 , 62060 , 73465 , 433671 , 305457 , 201293 , 2753896 , 93106166 , 18538343 , 467048050 , 123832701 , 7699154970 , 1835259827
n×2
2777781042
n×3
4166671563
n×4
5555562084
n×5
6944452605
n÷2
694445260.5
n÷3
462963507
n÷3
347222630.25
n÷5
277778104.2
n2
1929016879323651441
n3
2.6791932585416E+27
n4
3.7211061207156E+36
n5
5.1682090186969E+45
2 √n37267.821522058
3 √n1115.7220205057
4 √n193.04875426187
5 √n67.380402787332
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
-1388890520 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 1388890521 can be divided by 8 positive divisors.
The sum of these divisors (counting 1388890521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110010001100100110011001
3
Ternary
10120210102221121200
4
Quaternary
1102302030212121
5
Quinary
10321023444041
6
Senary
345452424413
8
Octal
12262144631
10
Decimal
1388890521
12
Duodecimal
329178109
16
Hexadecimal
52c8c999
20
Vigesimal
11e0b661
36
Base36
mywqs9
md5
4e4cc3ebd616aef5c0c81277dea7dabf
sha1
78b363663758e1fdd1e9d0ab834ad8a6f39a7536
sha256
5987b29fc4892378ae40932396c1feea2f38a30d57cd2910847a62e2a8af53d7
sha512
caa4dcf90cce506095644bffcfe3691670135b2f1f44b41fe900ead004e24b10ed0bed6b86be1a6defadf5c1278d96737f773666de406fa969b78741a264edcd
ripemd-160
a912b8f7b5e2ac4f07cb708112be994c756ca407
Diameter
2777781042
Circumference
8726656514.8282
Area
6.0601852567339E+18
Volume
1.1222578478109E+28
Surface area
2.4240741026936E+19
Circumference
8726656514.8282
Perimeter
5555562084
Area
1929016879323651441
Diagonal
1964187811.4496
Surface area
1.1574101275942E+19
Volume
2.6791932585416E+27
Space diagonal
2405628948.5228
Perimeter
4166671563
Area
8.3528881091163E+17
Altitude
1202814474.2614
Surface area
8.3528881091163E+17
Volume
3.1574595353734E+26
Height
654729270.48321