21491839 (number)

21491839 is an odd 8-digits prime number following 21491838 and preceding 21491840. In scientific notation, it is written as 2.1491839 × 10^7. The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors. There are 21491838 positive integers (up to 21491839) that are relatively prime to 21491839.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand eight hundred thirty-nine

Notation

Scientific notation 2.1491839 × 10^7
Engineering notation 2.1491839 × 10^6

Prime Factorization of 21491839

Prime Factorization 21491839

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21491839
Product of the distinct prime numbers

The prime factorization of 21491839 is 21491839. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491839)

Multiplication

n×y
n×2 42983678
n×3 64475517
n×4 85967356
n×5 107459195

Division

n÷y
n÷2 10745919.5
n÷3 7163946.3333333
n÷3 5372959.75
n÷5 4298367.8

Exponentiation

ny
n2 461899143601921
n3 9.9270620285304E+21
n4 2.1335081886019E+29
n5 4.5853014494613E+36

Nth Root

y√n
2√n 4635.9291409598
3√n 278.02970112078
4√n 68.087657772608
5√n 29.272156319096

Divisors of 21491839

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21491840
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10745920
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4635.929248813
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999069414
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491839 can be divided by 2 positive divisors. The sum of these divisors (counting 21491839) is 21491840, the average is 10745920.

Base conversion 21491839

Base System Value
2 Binary 1010001111111000001111111
3 Ternary 1111102220021001
4 Quaternary 1101333001333
5 Quinary 21000214324
6 Senary 2044351131
8 Octal 121770177
10 Decimal 21491839
12 Duodecimal 72454a7
16 Hexadecimal 147f07f
20 Vigesimal 6e69bj
36 Base36 csn7j

Cryptographic Hash Functions

md5 22673b92f00b30a853c87646914e37d0
sha1 077a9087e4bab3ca969b08097a6b28ca34e770be
sha256 a400edcfb1edf295538d865b01473b83bcb3913cf4935bd9a3d32d3d1e9674cd
sha512 d0469b793b37a31b5d502d3602872df78307edc7faeac22bc8186789bb6219ddeb85a479dd88c1defaf0a8d90a6b2a4a846f74ee131c8342e5e130b74b559276
ripemd-160 b442ef814a0a84beadfd210770528fc0f7f59e76

21491839 as geometric shapes

Circle

Radius = n
Diameter 42983678
Circumference 135037207.02907
Area 1.4510989562392E+15

Sphere

Radius = n
Volume 4.1582380187415E+22
Surface area 5.8043958249568E+15
Circumference 135037207.02907

Square

Length = n
Perimeter 85967356
Area 461899143601921
Diagonal 30394050.194139

Cube

Length = n
Surface area 2771394861611526
Volume 9.9270620285304E+21
Space diagonal 37224957.09609

Equilateral Triangle

Length = n
Perimeter 64475517
Area 2.0000819617277E+14
Altitude 18612478.548045

Triangular Pyramid

Length = n
Surface area 2.0000819617277E+14
Volume 1.1699154796056E+21
Height 10131350.064713