215985215 is an odd 9-digits composite number following 215985214
and preceding 215985216 . In scientific notation, it is written as 2.15985215 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 167214240 positive integers (up to 215985215) that are relatively prime to 215985215.
215985215 has 4 divisors, whose sum is 217378824
The reverse of 215985215 is 512589512
Previous prime number is 155
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
two hundred fifteen million nine hundred eighty-five thousand two hundred fifteen
Scientific notation
2.15985215 × 10^8
Engineering notation
2.15985215 × 10^6
Prime Factorization
155 × 1393453
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
215985215
Product of the distinct prime numbers
The prime factorization of 215985215 is 155 × 1393453.
Since it has a total of 2 prime factors.
4 , 3 , 1 , 8 , 818 , 930 , 4118 , 2759 , 59520 , 44033 , 808766 , 618959 , 7442690 , 4235543 , 88266162 , 93863111 , 336950685 , 766644657 , 5362588370 , 2596939451
n×2
431970430
n×3
647955645
n×4
863940860
n×5
1079926075
n÷2
107992607.5
n÷3
71995071.666667
n÷3
53996303.75
n÷5
43197043
n2
46649613098596225
n3
1.0075626714767E+25
n4
2.1761864022487E+33
n5
4.7002408796977E+41
2 √n
14696.435452177
3 √n
599.98630987282
4 √n
121.22885569111
5 √n
46.439208019766
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
-215985214
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 215985215 can be divided by 4 positive divisors.
The sum of these divisors (counting 215985215) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100110111111010110000111111
3
Ternary
120001102012000102
4
Quaternary
30313322300333
5
Quinary
420243011330
6
Senary
33233151315
8
Octal
1467726077
10
Decimal
215985215
12
Duodecimal
603bb53b
16
Hexadecimal
cdfac3f
20
Vigesimal
379i30f
36
Base36
3klb9b
md5
9c82eb580ec12032a0d59b1aa144ae67
sha1
6c99c298d79f01c4716f33b3e492592c9f9c0141
sha256
2b93b676c5fb1a2d1278c4336a1ec622e6be8d3ff4c92c21bd5d971925f54ca8
sha512
ff73462d6e6f2d5bf94e137f9bd68e089679cf5cb0fbd7b63bd4cb77f6bcd8a5994d0dfadf7b1289da9891e05cf865f323ea03d83ef2345f017e8180ba36d4c8
ripemd-160
0cb859bccb3d0dfec8c5bc4e0b27edfc6bcac5e5
Diameter
431970430
Circumference
1357075129.456
Area
1.4655408180336E+17
Volume
4.2204686489901E+25
Surface area
5.8621632721342E+17
Circumference
1357075129.456
Perimeter
863940860
Area
46649613098596225
Diagonal
305449220.32507
Surface area
279897678591577350
Volume
1.0075626714767E+25
Space diagonal
374097366.06369
Perimeter
647955645
Area
2.019987501005E+16
Altitude
187048683.03184
Surface area
2.019987501005E+16
Volume
1.187423995786E+24
Height
101816406.77502