21491045 (number)

21491045 is an odd 8-digits composite number following 21491044 and preceding 21491046. In scientific notation, it is written as 2.1491045 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 16776384 positive integers (up to 21491045) that are relatively prime to 21491045.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand forty-five

Notation

Scientific notation 2.1491045 × 10^7
Engineering notation 2.1491045 × 10^6

Prime Factorization of 21491045

Prime Factorization 5 × 59 × 277 × 263

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491045
Product of the distinct prime numbers

The prime factorization of 21491045 is 5 × 59 × 277 × 263. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 29, 9, 644, 499, 4988, 538, 1710, 45455, 140000, 355447, 7813295, 2704835, 97355773, 99179375, 253187750, 779218353, 8594719951, 4767006280

Basic calculations (n = 21491045)

Multiplication

n×y
n×2 42982090
n×3 64473135
n×4 85964180
n×5 107455225

Division

n÷y
n÷2 10745522.5
n÷3 7163681.6666667
n÷3 5372761.25
n÷5 4298209

Exponentiation

ny
n2 461865015192025
n3 9.9259618254175E+21
n4 2.1331929225833E+29
n5 4.5844545092919E+36

Nth Root

y√n
2√n 4635.8435046925
3√n 278.02627721181
4√n 68.087028901932
5√n 29.271940028293

Divisors of 21491045

1, 5, 59, 263, 277, 295, 1315, 1385, 15517, 16343, 72851, 77585, 81715, 364255, 4298209, 21491045

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 -21491044
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 21491045 can be divided by 16 positive divisors. The sum of these divisors (counting 21491045) is 1, the average is 0.0625.

Base conversion 21491045

Base System Value
2 Binary 1010001111110110101100101
3 Ternary 1111102212011122
4 Quaternary 1101332311211
5 Quinary 21000203140
6 Senary 2044343325
8 Octal 121766545
10 Decimal 21491045
12 Duodecimal 7244b45
16 Hexadecimal 147ed65
20 Vigesimal 6e67c5
36 Base36 csmlh

Cryptographic Hash Functions

md5 911b37ea5f5702730af9b0571e51d1e1
sha1 c8f6100ea088b1fc47905f243825fefced46a93a
sha256 bcdbfd26fc850ff3ffa3f63e93c2e3f7a7df0eeaac90a56ed99b219a10719a83
sha512 a104ff98041f653795af267e8fc56f730c3b99948dbe60289f84676cf56e0407f2667ea76d12612e083cd1dfb9a6c264113a0fba7ae33918c70dd2c685ed0093
ripemd-160 e44eaddec261286279b40c3efc6ddc56af7e4ea3

21491045 as geometric shapes

Circle

Radius = n
Diameter 42982090
Circumference 135032218.17994
Area 1.4509917386774E+15

Sphere

Radius = n
Volume 4.1577771667392E+22
Surface area 5.8039669547096E+15
Circumference 135032218.17994

Square

Length = n
Perimeter 85964180
Area 461865015192025
Diagonal 30392927.30857

Cube

Length = n
Surface area 2771190091152150
Volume 9.9259618254175E+21
Space diagonal 37223581.847749

Equilateral Triangle

Length = n
Perimeter 64473135
Area 1.9999341813779E+14
Altitude 18611790.923875

Triangular Pyramid

Length = n
Surface area 1.9999341813779E+14
Volume 1.1697858194253E+21
Height 10130975.769523