21521738 (number)

21521738 is an even 8-digits composite number following 21521737 and preceding 21521739. In scientific notation, it is written as 2.1521738 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 9206736 positive integers (up to 21521738) that are relatively prime to 21521738.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1521738 × 10^7
Engineering notation 2.1521738 × 10^6

Prime Factorization of 21521738

Prime Factorization 2 × 7 × 2069 × 743

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21521738
Product of the distinct prime numbers

The prime factorization of 21521738 is 2 × 7 × 2069 × 743. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 79, 19, 848, 565, 2807, 4325, 78310, 99289, 9915, 841140, 824919, 4698833, 27054333, 88537824, 560372651, 974468435, 4146612522, 6550372218

Basic calculations (n = 21521738)

Multiplication

n×y
n×2 43043476
n×3 64565214
n×4 86086952
n×5 107608690

Division

n÷y
n÷2 10760869
n÷3 7173912.6666667
n÷3 5380434.5
n÷5 4304347.6

Exponentiation

ny
n2 463185206540644
n3 9.9685506606436E+21
n4 2.145405355581E+29
n5 4.6172851966611E+36

Nth Root

y√n
2√n 4639.1527243668
3√n 278.15857109387
4√n 68.111325962477
5√n 29.280296353826

Divisors of 21521738

1, 2, 7, 14, 743, 1486, 2069, 4138, 5201, 10402, 14483, 28966, 1537267, 3074534, 10760869, 21521738

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 -21521737
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 21521738 can be divided by 16 positive divisors. The sum of these divisors (counting 21521738) is 1, the average is 0.0625.

Base conversion 21521738

Base System Value
2 Binary 1010010000110010101001010
3 Ternary 1111111102021102
4 Quaternary 1102012111022
5 Quinary 21002143423
6 Senary 2045141402
8 Octal 122062512
10 Decimal 21521738
12 Duodecimal 725a862
16 Hexadecimal 148654a
20 Vigesimal 6ea46i
36 Base36 ctaa2

Cryptographic Hash Functions

md5 cea43bb6047ddf92234f7539794eaae2
sha1 057fd58779b9b83d59ee023199c62e09966476fc
sha256 7aeb59c27e8ddf2e328298f622df1f46b1c726d84ef16aa968734791c1280a0b
sha512 609f28d209a1bc3afd170f3898402107aa35a76e381248889c6952b6a51b0e9a683276afbe88da96af6506f1dd48c3140c266f7bb20ae9a8818e8c788e82381e
ripemd-160 cbf4f475fbf3006e847357f569820488b65c506f

21521738 as geometric shapes

Circle

Radius = n
Diameter 43043476
Circumference 135225067.98657
Area 1.4551392421196E+15

Sphere

Radius = n
Volume 4.1756167363221E+22
Surface area 5.8205569684782E+15
Circumference 135225067.98657

Square

Length = n
Perimeter 86086952
Area 463185206540644
Diagonal 30436333.76544

Cube

Length = n
Surface area 2779111239243864
Volume 9.9685506606436E+21
Space diagonal 37276743.683186

Equilateral Triangle

Length = n
Perimeter 64565214
Area 2.0056507776067E+14
Altitude 18638371.841593

Triangular Pyramid

Length = n
Surface area 2.0056507776067E+14
Volume 1.1748049617905E+21
Height 10145444.58848