21001539 (number)

21001539 is an odd 8-digits composite number following 21001538 and preceding 21001540. In scientific notation, it is written as 2.1001539 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 12055680 positive integers (up to 21001539) that are relatively prime to 21001539.

Interesting facts

Basic properties

Name

Name twenty-one million one thousand five hundred thirty-nine

Notation

Scientific notation 2.1001539 × 10^7
Engineering notation 2.1001539 × 10^6

Prime Factorization of 21001539

Prime Factorization 87 × 13 × 31 × 599

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21001539
Product of the distinct prime numbers

The prime factorization of 21001539 is 87 × 13 × 31 × 599. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 67, 36, 488, 690, 7408, 4830, 59897, 41211, 379144, 387418, 5952523, 5052085, 9644531, 72550969, 614667616, 193910232, 3291216974, 1058596437

Basic calculations (n = 21001539)

Multiplication

n×y
n×2 42003078
n×3 63004617
n×4 84006156
n×5 105007695

Division

n÷y
n÷2 10500769.5
n÷3 7000513
n÷3 5250384.75
n÷5 4200307.8

Exponentiation

ny
n2 441064640368521
n3 9.2630362462205E+21
n4 1.9453801698341E+29
n5 4.0855977506598E+36

Nth Root

y√n
2√n 4582.743610546
3√n 275.89915713111
4√n 67.695964507096
5√n 29.137361637456

Divisors of 21001539

1, 13, 31, 87, 403, 599, 1131, 2697, 7787, 18569, 35061, 52113, 241397, 677469, 1615503, 21001539

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 -21001538
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 21001539 can be divided by 16 positive divisors. The sum of these divisors (counting 21001539) is 1, the average is 0.0625.

Base conversion 21001539

Base System Value
2 Binary 1010000000111010101000011
3 Ternary 1110111222200210
4 Quaternary 1100013111003
5 Quinary 20334022124
6 Senary 2030045203
8 Octal 120072503
10 Decimal 21001539
12 Duodecimal 7049803
16 Hexadecimal 1407543
20 Vigesimal 6b53gj
36 Base36 ci4w3

Cryptographic Hash Functions

md5 db4e5d58ce06604b3209e59ab4c389f9
sha1 2821fbeca8c3b9b43ee78bf7ba4c63b004e2406f
sha256 af07272f044f5b660933bcbc46d1aff1cdd2a79fac732d64976e646a409b9597
sha512 acae49d6c9d3aee30deda419507dbd42c4817e66ffb53206348aad55d9098b3540533c98417a09d28952c8565b3c465dee1e972abcdbb1fb379d49fdec4c205c
ripemd-160 019534a71661543cafe68a51bf334e1ae32eda79

21001539 as geometric shapes

Circle

Radius = n
Diameter 42003078
Circumference 131956561.27296
Area 1.38564543394E+15

Sphere

Radius = n
Volume 3.880091549475E+22
Surface area 5.5425817357599E+15
Circumference 131956561.27296

Square

Length = n
Perimeter 84006156
Area 441064640368521
Diagonal 29700661.284507

Cube

Length = n
Surface area 2646387842211126
Volume 9.2630362462205E+21
Space diagonal 36375732.585139

Equilateral Triangle

Length = n
Perimeter 63004617
Area 1.9098659163509E+14
Altitude 18187866.29257

Triangular Pyramid

Length = n
Surface area 1.9098659163509E+14
Volume 1.0916592906799E+21
Height 9900220.4281692