215685621 (number)

215685621 is an odd 9-digits composite number following 215685620 and preceding 215685622. In scientific notation, it is written as 2.15685621 × 10^8. The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors. There are 143790408 positive integers (up to 215685621) that are relatively prime to 215685621.

Interesting facts

Basic properties

Name

Name two hundred fifteen million six hundred eighty-five thousand six hundred twenty-one

Notation

Scientific notation 2.15685621 × 10^8
Engineering notation 2.15685621 × 10^6

Prime Factorization of 215685621

Prime Factorization 3 × 3 × 23965069

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 71895207
Product of the distinct prime numbers

The prime factorization of 215685621 is 3 × 3 × 23965069. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 17, 40, 524, 472, 1730, 2130, 29190, 95998, 576674, 751455, 6591867, 9181662, 48573824, 8201929, 700276788, 156649859, 5754062514, 4662685202

Basic calculations (n = 215685621)

Multiplication

n×y
n×2 431371242
n×3 647056863
n×4 862742484
n×5 1078428105

Division

n÷y
n÷2 107842810.5
n÷3 71895207
n÷3 53921405.25
n÷5 43137124.2

Exponentiation

ny
n2 46520287106155641
n3 1.0033757013589E+25
n4 2.1641371124392E+33
n5 4.6677325702559E+41

Nth Root

y√n
2√n 14686.239171415
3√n 599.7087669951
4√n 121.18679454221
5√n 46.426317661526

Divisors of 215685621

1, 3, 9, 23965069, 71895207, 215685621

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -215685620
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 215685621 can be divided by 6 positive divisors. The sum of these divisors (counting 215685621) is 1, the average is 0.16666666666667.

Base conversion 215685621

Base System Value
2 Binary 1100110110110001100111110101
3 Ternary 120000211222001100
4 Quaternary 30312301213311
5 Quinary 420203414441
6 Senary 33222520313
8 Octal 1466614765
10 Decimal 215685621
12 Duodecimal 60296099
16 Hexadecimal cdb19f5
20 Vigesimal 3780e11
36 Base36 3kew39

Cryptographic Hash Functions

md5 0ad8a2ca1f767b4a8a1be86f2afa3585
sha1 14a3fb1989f7470d7e34a14c16049551314a159c
sha256 2d06b2907ac7d142b6b2ab1149c7964ceea956059d20146386dd654a75f514fe
sha512 270f07e69be7b7f3afd4fe70bdf8a148efeee1e65f450352c2ad7beadc0a6e833c318938fdf6dcfca12be0107213c2e438bda06abe3d419f0f3888eb7cceecdd
ripemd-160 a511c6a5e2a9ebd3515c6ffb953d8d862bcdef38

215685621 as geometric shapes

Circle

Radius = n
Diameter 431371242
Circumference 1355192724.8371
Area 1.4614779221559E+17

Sphere

Radius = n
Volume 4.202930309573E+25
Surface area 5.8459116886235E+17
Circumference 1355192724.8371

Square

Length = n
Perimeter 862742484
Area 46520287106155641
Diagonal 305025530.42706

Cube

Length = n
Surface area 279121722636933846
Volume 1.0033757013589E+25
Space diagonal 373578454.03404

Equilateral Triangle

Length = n
Perimeter 647056863
Area 2.0143875212638E+16
Altitude 186789227.01702

Triangular Pyramid

Length = n
Surface area 2.0143875212638E+16
Volume 1.1824896041812E+24
Height 101675176.80902