21787397 (number)

21787397 is an odd 8-digits prime number following 21787396 and preceding 21787398. In scientific notation, it is written as 2.1787397 × 10^7. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 21787396 positive integers (up to 21787397) that are relatively prime to 21787397.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-seven thousand three hundred ninety-seven

Notation

Scientific notation 2.1787397 × 10^7
Engineering notation 2.1787397 × 10^6

Prime Factorization of 21787397

Prime Factorization 21787397

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21787397
Product of the distinct prime numbers

The prime factorization of 21787397 is 21787397. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 1, 38, 79, 830, 144, 8244, 710, 12550, 65386, 234497, 34238, 7283232, 4673782, 32839881, 33146047, 611040222, 66209938, 105541853, 1540511517

Basic calculations (n = 21787397)

Multiplication

n×y
n×2 43574794
n×3 65362191
n×4 87149588
n×5 108936985

Division

n÷y
n÷2 10893698.5
n÷3 7262465.6666667
n÷3 5446849.25
n÷5 4357479.4

Exponentiation

ny
n2 474690668035609
n3 1.0342274036687E+22
n4 2.2533123032009E+29
n5 4.9093809714823E+36

Nth Root

y√n
2√n 4667.697183837
3√n 279.29840077602
4√n 68.320547303407
5√n 29.352227807937

Divisors of 21787397

1, 21787397

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21787398
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10893699
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4667.6972909562
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999082038
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21787397 can be divided by 2 positive divisors. The sum of these divisors (counting 21787397) is 21787398, the average is 10893699.

Base conversion 21787397

Base System Value
2 Binary 1010011000111001100000101
3 Ternary 1111222220200122
4 Quaternary 1103013030011
5 Quinary 21034144042
6 Senary 2054551325
8 Octal 123071405
10 Decimal 21787397
12 Duodecimal 7368545
16 Hexadecimal 14c7305
20 Vigesimal 6g389h
36 Base36 cyz9h

Cryptographic Hash Functions

md5 a66f82f3335afaa943864224db01e5fb
sha1 10e26f2698f140d98861443fb82c0bee22ee00c6
sha256 664242cdfb442a8f703373eed0e6d396bdf2b87a9f8928487fee69b13cf8df43
sha512 51e4b38db0cebb70f3f38ba44e6d2e37f4de5327066d66187facee09111720d5e8633e31237a804d980b7e46d63d7943f194860da835e6fd4454f2748c0eb0a4
ripemd-160 d681791e093bffb0c5740f6029f377dce62daff7

21787397 as geometric shapes

Circle

Radius = n
Diameter 43574794
Circumference 136894252.71209
Area 1.4912847154283E+15

Sphere

Radius = n
Volume 4.3321616180091E+22
Surface area 5.9651388617132E+15
Circumference 136894252.71209

Square

Length = n
Perimeter 87149588
Area 474690668035609
Diagonal 30812032.326207

Cube

Length = n
Surface area 2848144008213654
Volume 1.0342274036687E+22
Space diagonal 37736878.568674

Equilateral Triangle

Length = n
Perimeter 65362191
Area 2.0554708872912E+14
Altitude 18868439.284337

Triangular Pyramid

Length = n
Surface area 2.0554708872912E+14
Volume 1.2188486840385E+21
Height 10270677.442069