21491292 (number)

21491292 is an even 8-digits composite number following 21491291 and preceding 21491293. In scientific notation, it is written as 2.1491292 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors. There are 6852208 positive integers (up to 21491292) that are relatively prime to 21491292.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand two hundred ninety-two

Notation

Scientific notation 2.1491292 × 10^7
Engineering notation 2.1491292 × 10^6

Prime Factorization of 21491292

Prime Factorization 2 × 2 × 69 × 77867

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10745646
Product of the distinct prime numbers

The prime factorization of 21491292 is 2 × 2 × 69 × 77867. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 39, 97, 332, 352, 5801, 6141, 41705, 74371, 446252, 577058, 4047997, 1210031, 88959930, 20085846, 698474669, 808163089, 2682755776, 4949852012

Basic calculations (n = 21491292)

Multiplication

n×y
n×2 42982584
n×3 64473876
n×4 85965168
n×5 107456460

Division

n÷y
n÷2 10745646
n÷3 7163764
n÷3 5372823
n÷5 4298258.4

Exponentiation

ny
n2 461875631829264
n3 9.9263040713272E+21
n4 2.1332909927768E+29
n5 4.5847179646736E+36

Nth Root

y√n
2√n 4635.8701448595
3√n 278.02734234114
4√n 68.087224534853
5√n 29.272007313396

Divisors of 21491292

1, 2, 4, 69, 138, 276, 77867, 155734, 311468, 5372823, 10745646, 21491292

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491291
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491292 can be divided by 12 positive divisors. The sum of these divisors (counting 21491292) is 1, the average is 0.083333333333333.

Base conversion 21491292

Base System Value
2 Binary 1010001111110111001011100
3 Ternary 1111102212111210
4 Quaternary 1101332321130
5 Quinary 21000210132
6 Senary 2044344420
8 Octal 121767134
10 Decimal 21491292
12 Duodecimal 7245110
16 Hexadecimal 147ee5c
20 Vigesimal 6e684c
36 Base36 csmsc

Cryptographic Hash Functions

md5 bc586f88daec48075274100f95348646
sha1 849021a1e61210a7c771090107066e15e398c1de
sha256 92eb78c8f4289139498c1d1056b262712f74077af47246853e4abbb319a86f23
sha512 3ba9df68aaf0d985a48eb3a582c04a1b5572b9d0d3f0fea575685d43888740b6e59e8f2aec7e1ab8966e3fa3575c9a881f3192018b4805cf4c4cd2d542db6c46
ripemd-160 1eb72f506cba733d41c995abdb5a2bc91c468792

21491292 as geometric shapes

Circle

Radius = n
Diameter 42982584
Circumference 135033770.12671
Area 1.451025091827E+15

Sphere

Radius = n
Volume 4.1579205263707E+22
Surface area 5.8041003673078E+15
Circumference 135033770.12671

Square

Length = n
Perimeter 85965168
Area 461875631829264
Diagonal 30393276.61932

Cube

Length = n
Surface area 2771253790975584
Volume 9.9263040713272E+21
Space diagonal 37224009.664299

Equilateral Triangle

Length = n
Perimeter 64473876
Area 1.9999801527657E+14
Altitude 18612004.832149

Triangular Pyramid

Length = n
Surface area 1.9999801527657E+14
Volume 1.1698261534925E+21
Height 10131092.20644