215431385 is an odd 9-digits composite number following 215431384
and preceding 215431386 . In scientific notation, it is written as 2.15431385 × 10^8.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 159087744 positive integers (up to 215431385) that are relatively prime to 215431385.
215431385 has 4 divisors, whose sum is 218745780
The reverse of 215431385 is 583134512
Previous prime number is 65
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
two hundred fifteen million four hundred thirty-one thousand three hundred eighty-five
Scientific notation
2.15431385 × 10^8
Engineering notation
2.15431385 × 10^6
Prime Factorization
65 × 3314329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
215431385
Product of the distinct prime numbers
The prime factorization of 215431385 is 65 × 3314329.
Since it has a total of 2 prime factors.
9 , 2 , 93 , 31 , 735 , 200 , 7573 , 3122 , 2850 , 43868 , 217566 , 834669 , 1027099 , 7573894 , 92918073 , 83350217 , 603554385 , 502404222 , 2696323540 , 1479792948
n×2
430862770
n×3
646294155
n×4
861725540
n×5
1077156925
n÷2
107715692.5
n÷3
71810461.666667
n÷3
53857846.25
n÷5
43086277
n2
46410681643018225
n3
9.9983174251495E+24
n4
2.1539513705696E+33
n5
4.6402872698445E+41
2 √n
14677.581033672
3 √n
599.47304195715
4 √n
121.15106699353
5 √n
46.415367640532
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-215431384
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 215431385 can be divided by 4 positive divisors.
The sum of these divisors (counting 215431385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100110101110011100011011001
3
Ternary
120000101001022012
4
Quaternary
30311303203121
5
Quinary
420122301020
6
Senary
33213235305
8
Octal
1465634331
10
Decimal
215431385
12
Duodecimal
60192b35
16
Hexadecimal
cd738d9
20
Vigesimal
3768i95
36
Base36
3k9fx5
md5
1b27455a7c4628e3faed68527fde1d81
sha1
bce1bed6f15157d4913321b1ac8bc3b250a0ab99
sha256
3ff777ae3bc0c79103933bd0c46e8319a1d88ede91de7cb091314e8de7ed16c6
sha512
7ac48e8c5a233a3bd9f10593f6ae605f9df70c243de2623cee84ffd02965fff9da2becc8ca89c0ea43e103142f200709dba9568b982886bc8016344e405359fc
ripemd-160
f694a957d0124bd3c01d3bf0ceebb7e31efd2588
Diameter
430862770
Circumference
1353595312.9373
Area
1.458034564978E+17
Volume
4.1880854094811E+25
Surface area
5.832138259912E+17
Circumference
1353595312.9373
Perimeter
861725540
Area
46410681643018225
Diagonal
304665986.42782
Surface area
278464089858109350
Volume
9.9983174251495E+24
Space diagonal
373138104.36493
Perimeter
646294155
Area
2.0096414654903E+16
Altitude
186569052.18247
Surface area
2.0096414654903E+16
Volume
1.1783130086298E+24
Height
101555328.80927