21508730 (number)

21508730 is an even 8-digits composite number following 21508729 and preceding 21508731. In scientific notation, it is written as 2.1508730 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 8325840 positive integers (up to 21508730) that are relatively prime to 21508730.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred eight thousand seven hundred thirty

Notation

Scientific notation 2.1508730 × 10^7
Engineering notation 2.1508730 × 10^6

Prime Factorization of 21508730

Prime Factorization 2 × 5 × 31 × 69383

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21508730
Product of the distinct prime numbers

The prime factorization of 21508730 is 2 × 5 × 31 × 69383. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 2, 2, 98, 886, 575, 988, 3927, 11288, 52430, 165660, 113183, 9283996, 1799964, 66469320, 54196639, 258059278, 314138367, 3177318216, 5287425322

Basic calculations (n = 21508730)

Multiplication

n×y
n×2 43017460
n×3 64526190
n×4 86034920
n×5 107543650

Division

n÷y
n÷2 10754365
n÷3 7169576.6666667
n÷3 5377182.5
n÷5 4301746

Exponentiation

ny
n2 462625466212900
n3 9.9504862438974E+21
n4 2.140223219887E+29
n5 4.6033483376281E+36

Nth Root

y√n
2√n 4637.7505323163
3√n 278.10251899256
4√n 68.101031800673
5√n 29.276756024403

Divisors of 21508730

1, 2, 5, 10, 31, 62, 155, 310, 69383, 138766, 346915, 693830, 2150873, 4301746, 10754365, 21508730

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 -21508729
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 21508730 can be divided by 16 positive divisors. The sum of these divisors (counting 21508730) is 1, the average is 0.0625.

Base conversion 21508730

Base System Value
2 Binary 1010010000011001001111010
3 Ternary 1111110202102122
4 Quaternary 1102003021322
5 Quinary 21001234410
6 Senary 2045001242
8 Octal 122031172
10 Decimal 21508730
12 Duodecimal 7253222
16 Hexadecimal 148327a
20 Vigesimal 6e8bga
36 Base36 ct08q

Cryptographic Hash Functions

md5 1ff89177dfc8790d5d1968c49ae3aaaf
sha1 499f5a41c6699d1774b74621579c16a457eb3cfe
sha256 33b81bc0ec9fc00a40985042bc404cc43a5538132e68aa1d72894301fe17c210
sha512 532e87736933e9d37f8feca0b63dd2f1e64063283bbb501b07a28a6fb6bc72e941c1798cf36e10f2d56f230b4b4fcb50362167ecfb8997fe1947b030493ede70
ripemd-160 ca0148bea5afb184d50801a5c549585cf27f232c

21508730 as geometric shapes

Circle

Radius = n
Diameter 43017460
Circumference 135143336.31209
Area 1.453380766018E+15

Sphere

Radius = n
Volume 4.1680499311299E+22
Surface area 5.813523064072E+15
Circumference 135143336.31209

Square

Length = n
Perimeter 86034920
Area 462625466212900
Diagonal 30417937.675421

Cube

Length = n
Surface area 2775752797277400
Volume 9.9504862438974E+21
Space diagonal 37254213.166281

Equilateral Triangle

Length = n
Perimeter 64526190
Area 2.00322703089E+14
Altitude 18627106.58314

Triangular Pyramid

Length = n
Surface area 2.00322703089E+14
Volume 1.1726760498606E+21
Height 10139312.558474