1288542021 is an odd 10-digits composite number following 1288542020
and preceding 1288542022 . In scientific notation, it is written as 1.288542021 × 10^9.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 792948624 positive integers (up to 1288542021) that are relatively prime to 1288542021.
1288542021 has 8 divisors, whose sum is 1423242240
The reverse of 1288542021 is 1202458821
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 33
Digital Root 6
Name
one billion two hundred eighty-eight million five hundred forty-two thousand twenty-one
Scientific notation
1.288542021 × 10^9
Engineering notation
1.288542021 × 10^9
Prime Factorization
39 × 13 × 2541503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1288542021
Product of the distinct prime numbers
The prime factorization of 1288542021 is 39 × 13 × 2541503.
Since it has a total of 3 prime factors.
10 , 1 , 7 , 99 , 377 , 64 , 7835 , 8223 , 36547 , 5260 , 286245 , 945176 , 2793800 , 1897308 , 22831748 , 19402199 , 602355756 , 862675168 , 2257163752 , 8442615643
n×2
2577084042
n×3
3865626063
n×4
5154168084
n×5
6442710105
n÷2
644271010.5
n÷3
429514007
n÷3
322135505.25
n÷5
257708404.2
n2
1660340539882764441
n3
2.1394185548088E+27
n4
2.7567307083782E+36
n5
3.5521633583264E+45
2 √n
35896.267507918
3 √n
1088.1769658462
4 √n
189.46310328905
5 √n
66.377320537835
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
-1288542020
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 1288542021 can be divided by 8 positive divisors.
The sum of these divisors (counting 1288542021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110011011001011101000101
3
Ternary
10022210121201100120
4
Quaternary
1030303121131011
5
Quinary
10114331321041
6
Senary
331505532153
8
Octal
11463313505
10
Decimal
1288542021
12
Duodecimal
2bb644059
16
Hexadecimal
4ccd9745
20
Vigesimal
102d7f11
36
Base36
lb5xdx
md5
2b08eb30889d70d7108191911a2f6dbc
sha1
bd15a72b2e56550a825807fa6eafa7436634eee6
sha256
6caeca8fbb6087391cff6dc3c5dfe87d7857fa09efc59d433dcbab8f710ce826
sha512
0bb60f4ecf86f71f1a698799baea3f86488645c52da14825ef368302795415c817cd89e053977f318ec7f40902a7dbc8c9f6452d67474181fd17f1580dd8dee3
ripemd-160
093f3051d3e6bd4764b6dfc53478f6e7c963d6ef
Diameter
2577084042
Circumference
8096148294.0307
Area
5.216113642553E+18
Volume
8.9615754863212E+27
Surface area
2.0864454570212E+19
Circumference
8096148294.0307
Perimeter
5154168084
Area
1660340539882764441
Diagonal
1822273601.7858
Surface area
9.9620432392966E+18
Volume
2.1394185548088E+27
Space diagonal
2231820248.0595
Perimeter
3865626063
Area
7.1894854323582E+17
Altitude
1115910124.0297
Surface area
7.1894854323582E+17
Volume
2.5213289465027E+26
Height
607424533.92861