21461857 (number)

21461857 is an odd 8-digits composite number following 21461856 and preceding 21461858. In scientific notation, it is written as 2.1461857 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 21292740 positive integers (up to 21461857) that are relatively prime to 21461857.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred sixty-one thousand eight hundred fifty-seven

Notation

Scientific notation 2.1461857 × 10^7
Engineering notation 2.1461857 × 10^6

Prime Factorization of 21461857

Prime Factorization 127 × 168991

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21461857
Product of the distinct prime numbers

The prime factorization of 21461857 is 127 × 168991. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21461857)

Multiplication

n×y
n×2 42923714
n×3 64385571
n×4 85847428
n×5 107309285

Division

n÷y
n÷2 10730928.5
n÷3 7153952.3333333
n÷3 5365464.25
n÷5 4292371.4

Exponentiation

ny
n2 460611305888449
n3 9.8855739795611E+21
n4 2.1216277511226E+29
n5 4.5534071401825E+36

Nth Root

y√n
2√n 4632.6943564194
3√n 277.90035332807
4√n 68.063899068591
5√n 29.263984585282

Divisors of 21461857

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 -21461856
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 21461857 can be divided by 4 positive divisors. The sum of these divisors (counting 21461857) is 1, the average is 0.25.

Base conversion 21461857

Base System Value
2 Binary 1010001110111101101100001
3 Ternary 1111101101010121
4 Quaternary 1101313231201
5 Quinary 20443234412
6 Senary 2044000241
8 Octal 121675541
10 Decimal 21461857
12 Duodecimal 7230081
16 Hexadecimal 1477b61
20 Vigesimal 6e2ech
36 Base36 cs02p

Cryptographic Hash Functions

md5 5bacd32eacbfaadfc5b2fb8e601717d1
sha1 f4e912f2d222939db3da1a1d68ee7506fcc8420b
sha256 5dc036a79fc722d9c476baf71245d6e39c0fd64944c8dcfc2c46f652deadb6f7
sha512 d59d4a87ffcfa39eb033056efee14c7a70db3361f1b487fa4333b055c71e4062deaa3010ab9615c5212adf7e542c89e54296498ea160230a5374de20a0ee2149
ripemd-160 738cca9edb6693dd54650db2155632382357e8c8

21461857 as geometric shapes

Circle

Radius = n
Diameter 42923714
Circumference 134848824.56719
Area 1.4470530947396E+15

Sphere

Radius = n
Volume 4.1408595454277E+22
Surface area 5.7882123789582E+15
Circumference 134848824.56719

Square

Length = n
Perimeter 85847428
Area 460611305888449
Diagonal 30351649.243112

Cube

Length = n
Surface area 2763667835330694
Volume 9.8855739795611E+21
Space diagonal 37173026.748778

Equilateral Triangle

Length = n
Perimeter 64385571
Area 1.9945054608486E+14
Altitude 18586513.374389

Triangular Pyramid

Length = n
Surface area 1.9945054608486E+14
Volume 1.1650260661448E+21
Height 10117216.414371