21521285 (number)

21521285 is an odd 8-digits composite number following 21521284 and preceding 21521286. In scientific notation, it is written as 2.1521285 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 16269120 positive integers (up to 21521285) that are relatively prime to 21521285.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred twenty-one thousand two hundred eighty-five

Notation

Scientific notation 2.1521285 × 10^7
Engineering notation 2.1521285 × 10^6

Prime Factorization of 21521285

Prime Factorization 31 × 5 × 43 × 3229

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21521285
Product of the distinct prime numbers

The prime factorization of 21521285 is 31 × 5 × 43 × 3229. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 40, 98, 648, 216, 9857, 1398, 18297, 83860, 555278, 815445, 2641249, 7846137, 32664032, 94341815, 63328753, 437471162, 3404078181, 5368355101

Basic calculations (n = 21521285)

Multiplication

n×y
n×2 43042570
n×3 64563855
n×4 86085140
n×5 107606425

Division

n÷y
n÷2 10760642.5
n÷3 7173761.6666667
n÷3 5380321.25
n÷5 4304257

Exponentiation

ny
n2 463165708051225
n3 9.9679212051972E+21
n4 2.1452247311459E+29
n5 4.616799282804E+36

Nth Root

y√n
2√n 4639.1039005394
3√n 278.15661947459
4√n 68.110967549576
5√n 29.280173091606

Divisors of 21521285

1, 5, 31, 43, 155, 215, 1333, 3229, 6665, 16145, 100099, 138847, 500495, 694235, 4304257, 21521285

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 -21521284
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 21521285 can be divided by 16 positive divisors. The sum of these divisors (counting 21521285) is 1, the average is 0.0625.

Base conversion 21521285

Base System Value
2 Binary 1010010000110001110000101
3 Ternary 1111111101122122
4 Quaternary 1102012032011
5 Quinary 21002140120
6 Senary 2045135325
8 Octal 122061605
10 Decimal 21521285
12 Duodecimal 725a545
16 Hexadecimal 1486385
20 Vigesimal 6ea345
36 Base36 ct9xh

Cryptographic Hash Functions

md5 588c9867b4deda482ed62cd2a28f937d
sha1 5396ad6f86cacbf58af0de59f11bfe5ee32ee6e7
sha256 fe42cde87f190a44419b2bd7b0518ccb13a2ce1f7acc1125ee45a3b08a310411
sha512 ba6aeeb7074c7acd0fb67227e1d5b483e12015aa08c543599be2614661cdcc4120995807e77c83c609a505f62138f7ae15cbc912edf50bdb6f440e07cb5a51ab
ripemd-160 2c042154892e4866c6d4cba5c0eb4dd14cb0d33b

21521285 as geometric shapes

Circle

Radius = n
Diameter 43042570
Circumference 135222221.70362
Area 1.4550779858084E+15

Sphere

Radius = n
Volume 4.1753530706413E+22
Surface area 5.8203119432338E+15
Circumference 135222221.70362

Square

Length = n
Perimeter 86085140
Area 463165708051225
Diagonal 30435693.126697

Cube

Length = n
Surface area 2778994248307350
Volume 9.9679212051972E+21
Space diagonal 37275959.06417

Equilateral Triangle

Length = n
Perimeter 64563855
Area 2.0055663466708E+14
Altitude 18637979.532085

Triangular Pyramid

Length = n
Surface area 2.0055663466708E+14
Volume 1.1747307797547E+21
Height 10145231.042232