215685345 is an odd 9-digits composite number following 215685344
and preceding 215685346 . In scientific notation, it is written as 2.15685345 × 10^8.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 115032176 positive integers (up to 215685345) that are relatively prime to 215685345.
215685345 has 4 divisors, whose sum is 230064384
The reverse of 215685345 is 543586512
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
two hundred fifteen million six hundred eighty-five thousand three hundred forty-five
Scientific notation
2.15685345 × 10^8
Engineering notation
2.15685345 × 10^6
Prime Factorization
15 × 14379023
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
215685345
Product of the distinct prime numbers
The prime factorization of 215685345 is 15 × 14379023.
Since it has a total of 2 prime factors.
10 , 3 , 71 , 78 , 510 , 741 , 1417 , 3704 , 90023 , 64355 , 968951 , 982153 , 1871400 , 5217968 , 52071847 , 59406231 , 233237044 , 717167396 , 2264603596 , 7386479227
n×2
431370690
n×3
647056035
n×4
862741380
n×5
1078426725
n÷2
107842672.5
n÷3
71895115
n÷3
53921336.25
n÷5
43137069
n2
46520168047769025
n3
1.0033718494841E+25
n4
2.1641260351927E+33
n5
4.6677027052401E+41
2 √n
14686.229774861
3 √n
599.70851119117
4 √n
121.18675577331
5 √n
46.426305779723
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
-215685344
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 215685345 can be divided by 4 positive divisors.
The sum of these divisors (counting 215685345) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100110110110001100011100001
3
Ternary
120000211221200010
4
Quaternary
30312301203201
5
Quinary
420203412340
6
Senary
33222515133
8
Octal
1466614341
10
Decimal
215685345
12
Duodecimal
60295aa9
16
Hexadecimal
cdb18e1
20
Vigesimal
3780d75
36
Base36
3kevvl
md5
5049144bab4aaf385a06420078d92294
sha1
a2091234bb2d85a557a5904d05a3fb65ba856df0
sha256
665ce91313bddf139a585f4fe2f48fe50a21980602dc94435a4aac8b29e6bc75
sha512
df97ef165322bd067863035d82fcdfbaf51fa185cdd5d6bfa8125328ca961e4e2b4bbef897be489f56d028559d7562397f8e3c772a8961ab6551a73e2da8a5dc
ripemd-160
f6cd63a3118f70a47cffae50fc653be82edd5da5
Diameter
431370690
Circumference
1355190990.678
Area
1.4614741818263E+17
Volume
4.2029141748774E+25
Surface area
5.8458967273054E+17
Circumference
1355190990.678
Perimeter
862741380
Area
46520168047769025
Diagonal
305025140.10412
Surface area
279121008286614150
Volume
1.0033718494841E+25
Space diagonal
373577975.98802
Perimeter
647056035
Area
2.0143823658845E+16
Altitude
186788987.99401
Surface area
2.0143823658845E+16
Volume
1.1824850647032E+24
Height
101675046.70137