21609987 (number)

21609987 is an odd 8-digits composite number following 21609986 and preceding 21609988. In scientific notation, it is written as 2.1609987 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 12287520 positive integers (up to 21609987) that are relatively prime to 21609987.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred nine thousand nine hundred eighty-seven

Notation

Scientific notation 2.1609987 × 10^7
Engineering notation 2.1609987 × 10^6

Prime Factorization of 21609987

Prime Factorization 7 × 3 × 211 × 4877

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21609987
Product of the distinct prime numbers

The prime factorization of 21609987 is 7 × 3 × 211 × 4877. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 20, 32, 814, 813, 5971, 6720, 93501, 88356, 926264, 179390, 2054407, 1385192, 70601822, 46119581, 836780563, 589628155, 5735803966, 1106239615

Basic calculations (n = 21609987)

Multiplication

n×y
n×2 43219974
n×3 64829961
n×4 86439948
n×5 108049935

Division

n÷y
n÷2 10804993.5
n÷3 7203329
n÷3 5402496.75
n÷5 4321997.4

Exponentiation

ny
n2 466991538140169
n3 1.0091681068319E+22
n4 2.1808109669452E+29
n5 4.7127296645143E+36

Nth Root

y√n
2√n 4648.6543214139
3√n 278.53824520675
4√n 68.181040776846
5√n 29.304269595268

Divisors of 21609987

1, 3, 7, 21, 211, 633, 1477, 4431, 4877, 14631, 34139, 102417, 1029047, 3087141, 7203329, 21609987

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21609986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21609987 can be divided by 16 positive divisors. The sum of these divisors (counting 21609987) is 1, the average is 0.0625.

Base conversion 21609987

Base System Value
2 Binary 1010010011011111000000011
3 Ternary 1111122220022220
4 Quaternary 1102123320003
5 Quinary 21013004422
6 Senary 2051102123
8 Octal 122337003
10 Decimal 21609987
12 Duodecimal 72a1943
16 Hexadecimal 149be03
20 Vigesimal 6f14j7
36 Base36 cv6df

Cryptographic Hash Functions

md5 9c0b9d1130c3ea2466a0737d3651d548
sha1 7f9c53e8a07077d741e7731ee352edce553f17c8
sha256 cd09116c290a895249dc6c2f07caf9bcbaca0e704a12b376bd833b7199cfa20f
sha512 4abe1bde8b7aefe3c1fdc634a363b855cb235805d18a1c1db70e25e495a0497cea0b7f62e720c694279a0dadf39dc1fb1e7ecbc9629db27eac6fb9b28382c365
ripemd-160 6bd0a7f3a1f08c4bec2e5e59631339826f026ee2

21609987 as geometric shapes

Circle

Radius = n
Diameter 43219974
Circumference 135779552.80674
Area 1.4670971855098E+15

Sphere

Radius = n
Volume 4.2271934808803E+22
Surface area 5.868388742039E+15
Circumference 135779552.80674

Square

Length = n
Perimeter 86439948
Area 466991538140169
Diagonal 30561136.698106

Cube

Length = n
Surface area 2801949228841014
Volume 1.0091681068319E+22
Space diagonal 37429595.434903

Equilateral Triangle

Length = n
Perimeter 64829961
Area 2.0221326769088E+14
Altitude 18714797.717451

Triangular Pyramid

Length = n
Surface area 2.0221326769088E+14
Volume 1.1893160194967E+21
Height 10187045.566035