2155138521 is an odd 10-digits composite number following 2155138520
and preceding 2155138522 . In scientific notation, it is written as 2.155138521 × 10^9.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 1428480000 positive integers (up to 2155138521) that are relatively prime to 2155138521.
2155138521 has 16 divisors, whose sum is 2890120128
The reverse of 2155138521 is 1258315512
Previous prime number is 4651
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 33
Digital Root 6
Name
two billion one hundred fifty-five million one hundred thirty-eight thousand five hundred twenty-one
Scientific notation
2.155138521 × 10^9
Engineering notation
2.155138521 × 10^9
Prime Factorization
3 × 601 × 4651 × 257
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2155138521
Product of the distinct prime numbers
The prime factorization of 2155138521 is 3 × 601 × 4651 × 257.
Since it has a total of 4 prime factors.
9 , 10 , 51 , 69 , 40 , 778 , 8680 , 7906 , 31149 , 18263 , 417626 , 460578 , 3723226 , 4403866 , 41970635 , 98459024 , 758463480 , 32217023 , 970001132 , 777491074
n×2
4310277042
n×3
6465415563
n×4
8620554084
n×5
10775692605
n÷2
1077569260.5
n÷3
718379507
n÷3
538784630.25
n÷5
431027704.2
n2
4644622044698067441
n3
1.0009803884015E+28
n4
2.1572513938095E+37
n5
4.6491755782798E+46
2 √n
46423.469506275
3 √n
1291.6902948953
4 √n
215.46106262217
5 √n
73.569031348469
1 , 3 , 257 , 601 , 771 , 1803 , 4651 , 13953 , 154457 , 463371 , 1195307 , 2795251 , 3585921 , 8385753 , 718379507 , 2155138521
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
-2155138520
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 2155138521 can be divided by 16 positive divisors.
The sum of these divisors (counting 2155138521) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10000000011101001100110111011001
3
Ternary
12120012021101021020
4
Quaternary
2000131030313121
5
Quinary
13403203413041
6
Senary
553504033053
8
Octal
20035146731
10
Decimal
2155138521
12
Duodecimal
501902789
16
Hexadecimal
8074cdd9
20
Vigesimal
1dd9c661
36
Base36
zn43ix
md5
ad8f03f1a05f47b2d10d88fa46fcb460
sha1
5db38adf470295f5d7b840ee3a3b26f7487c53ed
sha256
b1b1cfe6189ee41857953f92045332deaa7329f7bcf5131cbfbb7d1886fcc6d0
sha512
ff7ecfd0760745f7b0326365b22f1b2ca28623b19ee69da9599eb07647ce542d03455e94402ad7a301945806d8b6f893483f9b0f3225f3f6d67452c275f222dc
ripemd-160
06f70c2ca758a96d3596c285586b1b24549435ee
Diameter
4310277042
Circumference
13541134690.084
Area
1.4591510494325E+19
Volume
4.1928968461193E+28
Surface area
5.8366041977299E+19
Circumference
13541134690.084
Perimeter
8620554084
Area
4644622044698067441
Diagonal
3047826125.1909
Surface area
2.7867732268188E+19
Volume
1.0009803884015E+28
Space diagonal
3732809415.7208
Perimeter
6465415563
Area
2.0111803408429E+18
Altitude
1866404707.8604
Surface area
2.0111803408429E+18
Volume
1.179666700789E+27
Height
1015942041.7303