21988521 (number)

21988521 is an odd 8-digits composite number following 21988520 and preceding 21988522. In scientific notation, it is written as 2.1988521 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 14588280 positive integers (up to 21988521) that are relatively prime to 21988521.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred eighty-eight thousand five hundred twenty-one

Notation

Scientific notation 2.1988521 × 10^7
Engineering notation 2.1988521 × 10^6

Prime Factorization of 21988521

Prime Factorization 3 × 3 × 211 × 11579

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7329507
Product of the distinct prime numbers

The prime factorization of 21988521 is 3 × 3 × 211 × 11579. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 96, 86, 220, 79, 1345, 4483, 36571, 92040, 338440, 328619, 4235770, 9575763, 13028937, 71506516, 894859718, 282447810, 5972737570, 2878589651

Basic calculations (n = 21988521)

Multiplication

n×y
n×2 43977042
n×3 65965563
n×4 87954084
n×5 109942605

Division

n÷y
n÷2 10994260.5
n÷3 7329507
n÷3 5497130.25
n÷5 4397704.2

Exponentiation

ny
n2 483495055767441
n3 1.0631341187139E+22
n4 2.3376746895156E+29
n5 5.1402009001582E+36

Nth Root

y√n
2√n 4689.1919346514
3√n 280.15519033023
4√n 68.47767471703
5√n 29.406220114422

Divisors of 21988521

1, 3, 9, 211, 633, 1899, 11579, 34737, 104211, 2443169, 7329507, 21988521

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 -21988520
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 21988521 can be divided by 12 positive divisors. The sum of these divisors (counting 21988521) is 1, the average is 0.083333333333333.

Base conversion 21988521

Base System Value
2 Binary 1010011111000010010101001
3 Ternary 1112101010120200
4 Quaternary 1103320102221
5 Quinary 21112113041
6 Senary 2103142413
8 Octal 123702251
10 Decimal 21988521
12 Duodecimal 7444a09
16 Hexadecimal 14f84a9
20 Vigesimal 6h8b61
36 Base36 d3ag9

Cryptographic Hash Functions

md5 af50bb3eebc0ef3797a73313c598a610
sha1 72abf189a355140954f288f26ba10e624ea6e311
sha256 d1650d92690cb52c9bc25900fe6b0c71dd23230c3987899c08e33e975d1cf5bf
sha512 1ff0ce61250e78e0633f3a5075b6e85833001e6f8cd8d8b8261196aa0ff81de984ef1fb0f3acdc6f1b747b68f43decc1920dfa98c721b99457e683dac05a053a
ripemd-160 fb58b4bbf48da3fa05ad5042f42c5cf85f5e05b5

21988521 as geometric shapes

Circle

Radius = n
Diameter 43977042
Circumference 138157952.07381
Area 1.518944515246E+15

Sphere

Radius = n
Volume 4.4532457828428E+22
Surface area 6.0757780609839E+15
Circumference 138157952.07381

Square

Length = n
Perimeter 87954084
Area 483495055767441
Diagonal 31096464.614726

Cube

Length = n
Surface area 2900970334604646
Volume 1.0631341187139E+22
Space diagonal 38085235.555295

Equilateral Triangle

Length = n
Perimeter 65965563
Area 2.0935950044939E+14
Altitude 19042617.777648

Triangular Pyramid

Length = n
Surface area 2.0935950044939E+14
Volume 1.2529155744223E+21
Height 10365488.204909