215512138 is an even 9-digits composite number following 215512137
and preceding 215512139 . In scientific notation, it is written as 2.15512138 × 10^8.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 107756068 positive integers (up to 215512138) that are relatively prime to 215512138.
215512138 has 4 divisors, whose sum is 323268210
The reverse of 215512138 is 831215512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 28
Digital Root 1
Name
two hundred fifteen million five hundred twelve thousand one hundred thirty-eight
Scientific notation
2.15512138 × 10^8
Engineering notation
2.15512138 × 10^6
Prime Factorization
2 × 107756069
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
215512138
Product of the distinct prime numbers
The prime factorization of 215512138 is 2 × 107756069.
Since it has a total of 2 prime factors.
7 , 4 , 8 , 61 , 13 , 233 , 3170 , 8960 , 63480 , 61110 , 370986 , 721827 , 9443035 , 9053328 , 18518088 , 34085627 , 642263813 , 743945271 , 4751309893 , 7205753424
n×2
431024276
n×3
646536414
n×4
862048552
n×5
1077560690
n÷2
107756069
n÷3
71837379.333333
n÷3
53878034.5
n÷5
43102427.6
n2
46445481625331044
n3
1.0009565045515E+25
n4
2.157182763409E+33
n5
4.6489906939901E+41
2 √n
14680.331672003
3 √n
599.54793540747
4 √n
121.16241856286
5 √n
46.418846816343
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
-215512137
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 215512138 can be divided by 4 positive divisors.
The sum of these divisors (counting 215512138) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100110110000111010001001010
3
Ternary
120000112011002001
4
Quaternary
30312013101022
5
Quinary
420132342023
6
Senary
33215101214
8
Octal
1466072112
10
Decimal
215512138
12
Duodecimal
6021180a
16
Hexadecimal
cd8744a
20
Vigesimal
376j06i
36
Base36
3kb68a
md5
0badf2c5948e5a547e4c85fab6cc6cbf
sha1
6e6c1e5e88916fe5df29de42e6151b30f07f5c31
sha256
67e793c75a9c5ec2ee67e1fc35a806186dfe0610fd9a5a6a3bb6a6d77b5c94b8
sha512
f734e3cc57c1992a15e6ec3f818550f96df86eb563f6ddea468a365984f575c3a4577165854d879f072098e319559fae31e0ea2e0d1c02aead5504f9b80a6f97
ripemd-160
7ab8d53e33815b62b5262185ad61888fb852c8fa
Diameter
431024276
Circumference
1354102699.0005
Area
1.4591278386658E+17
Volume
4.1927968016825E+25
Surface area
5.8365113546632E+17
Circumference
1354102699.0005
Perimeter
862048552
Area
46445481625331044
Diagonal
304780188.41562
Surface area
278672889751986264
Volume
1.0009565045515E+25
Space diagonal
373277972.6638
Perimeter
646536414
Area
2.011148348927E+16
Altitude
186638986.3319
Surface area
2.011148348927E+16
Volume
1.1796385534019E+24
Height
101593396.13854