21151215 (number)

21151215 is an odd 8-digits composite number following 21151214 and preceding 21151216. In scientific notation, it is written as 2.1151215 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 11188800 positive integers (up to 21151215) that are relatively prime to 21151215.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred fifty-one thousand two hundred fifteen

Notation

Scientific notation 2.1151215 × 10^7
Engineering notation 2.1151215 × 10^6

Prime Factorization of 21151215

Prime Factorization 9 × 5 × 127 × 3701

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21151215
Product of the distinct prime numbers

The prime factorization of 21151215 is 9 × 5 × 127 × 3701. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 58, 57, 190, 49, 446, 6500, 12345, 6481, 840521, 152455, 2129617, 4816263, 83528365, 57700683, 619812961, 660248586, 5933850760, 7694868556

Basic calculations (n = 21151215)

Multiplication

n×y
n×2 42302430
n×3 63453645
n×4 84604860
n×5 105756075

Division

n÷y
n÷2 10575607.5
n÷3 7050405
n÷3 5287803.75
n÷5 4230243

Exponentiation

ny
n2 447373895976225
n3 9.4625014591808E+21
n4 2.0014340280095E+29
n5 4.2332761434744E+36

Nth Root

y√n
2√n 4599.0450095645
3√n 276.55304200156
4√n 67.816259182916
5√n 29.178775592865

Divisors of 21151215

1, 5, 9, 45, 127, 635, 1143, 3701, 5715, 18505, 33309, 166545, 470027, 2350135, 4230243, 21151215

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 -21151214
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 21151215 can be divided by 16 positive divisors. The sum of these divisors (counting 21151215) is 1, the average is 0.0625.

Base conversion 21151215

Base System Value
2 Binary 1010000101011110111101111
3 Ternary 1110210121000100
4 Quaternary 1100223313233
5 Quinary 20403314330
6 Senary 2033202143
8 Octal 120536757
10 Decimal 21151215
12 Duodecimal 7100353
16 Hexadecimal 142bdef
20 Vigesimal 6c3i0f
36 Base36 clcdr

Cryptographic Hash Functions

md5 b739d836267333f6bc2aefb95f8f9109
sha1 e35f4cb148fea626561100a02d89ea48dfe7df04
sha256 caea3dfecb65285d7a7f988b4c4adeb29fd8964fbe3bc5233aa2c05e2d70f1ae
sha512 1b85746c61bacc7168683d46a569b73f9e8c5081efc90fe3b01d6f086a7df63cb6dfe2016718a0134d3474a79652202dba623ad1ca3dcf8a3e2a629e51fc8c3b
ripemd-160 3761a1eef21834242a66dc6c11ebcb94f402f72e

21151215 as geometric shapes

Circle

Radius = n
Diameter 42302430
Circumference 132897003.317
Area 1.4054665450068E+15

Sphere

Radius = n
Volume 3.9636433424993E+22
Surface area 5.621866180027E+15
Circumference 132897003.317

Square

Length = n
Perimeter 84604860
Area 447373895976225
Diagonal 29912335.113669

Cube

Length = n
Surface area 2684243375857350
Volume 9.4625014591808E+21
Space diagonal 36634979.021813

Equilateral Triangle

Length = n
Perimeter 63453645
Area 1.9371857945271E+14
Altitude 18317489.510906

Triangular Pyramid

Length = n
Surface area 1.9371857945271E+14
Volume 1.1151664914624E+21
Height 9970778.3712231