21508768 (number)

21508768 is an even 8-digits composite number following 21508767 and preceding 21508769. In scientific notation, it is written as 2.1508768 × 10^7. The sum of its digits is 37. It has a total of 7 prime factors and 24 positive divisors. There are 10705920 positive integers (up to 21508768) that are relatively prime to 21508768.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1508768 × 10^7
Engineering notation 2.1508768 × 10^6

Prime Factorization of 21508768

Prime Factorization 2 × 2 × 2 × 2 × 2 × 241 × 2789

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1344298
Product of the distinct prime numbers

The prime factorization of 21508768 is 2 × 2 × 2 × 2 × 2 × 241 × 2789. Since it has a total of 7 prime factors.

Most popular turbo-numbers

1, 6, 7, 40, 874, 181, 4888, 6887, 2935, 26165, 685774, 426777, 4712122, 7139224, 36470816, 30695876, 337061957, 529547270, 2058626354, 6109297681

Basic calculations (n = 21508768)

Multiplication

n×y
n×2 43017536
n×3 64526304
n×4 86035072
n×5 107543840

Division

n÷y
n÷2 10754384
n÷3 7169589.3333333
n÷3 5377192
n÷5 4301753.6

Exponentiation

ny
n2 462627100877824
n3 9.9505389832937E+21
n4 2.1402383446662E+29
n5 4.6033890020129E+36

Nth Root

y√n
2√n 4637.7546291282
3√n 278.1026827693
4√n 68.101061879593
5√n 29.276766369188

Divisors of 21508768

1, 2, 4, 8, 16, 32, 241, 482, 964, 1928, 2789, 3856, 5578, 7712, 11156, 22312, 44624, 89248, 672149, 1344298, 2688596, 5377192, 10754384, 21508768

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21508767
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21508768 can be divided by 24 positive divisors. The sum of these divisors (counting 21508768) is 1, the average is 0.041666666666667.

Base conversion 21508768

Base System Value
2 Binary 1010010000011001010100000
3 Ternary 1111110202111001
4 Quaternary 1102003022200
5 Quinary 21001240033
6 Senary 2045001344
8 Octal 122031240
10 Decimal 21508768
12 Duodecimal 7253254
16 Hexadecimal 14832a0
20 Vigesimal 6e8bi8
36 Base36 ct09s

Cryptographic Hash Functions

md5 0905fec07bd6f3705bad960f8e0da269
sha1 654e57ee5ee4ddb9b9578ade118c06194a1223be
sha256 38c2ec25267552eb0919b525bc51573a9c217f9ff1a871822eda5d9809018da6
sha512 920626d34c8d36cc7ec7ebf783c4e8f1039eaba07f5fb4a22b092f11586805a6b75f34a6051dbcfe2c9371cc37f0a286dbec45b4be047c265a91ba2020111c80
ripemd-160 0fe17b01d0df38eea37c8f7ae9302b142edde64e

21508768 as geometric shapes

Circle

Radius = n
Diameter 43017536
Circumference 135143575.07313
Area 1.4533859014693E+15

Sphere

Radius = n
Volume 4.1680720225566E+22
Surface area 5.8135436058773E+15
Circumference 135143575.07313

Square

Length = n
Perimeter 86035072
Area 462627100877824
Diagonal 30417991.415536

Cube

Length = n
Surface area 2775762605266944
Volume 9.9505389832937E+21
Space diagonal 37254278.984212

Equilateral Triangle

Length = n
Perimeter 64526304
Area 2.0032341091967E+14
Altitude 18627139.492106

Triangular Pyramid

Length = n
Surface area 2.0032341091967E+14
Volume 1.172682265258E+21
Height 10139330.471845