21249939 (number)

21249939 is an odd 8-digits composite number following 21249938 and preceding 21249940. In scientific notation, it is written as 2.1249939 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 14139360 positive integers (up to 21249939) that are relatively prime to 21249939.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-nine thousand nine hundred thirty-nine

Notation

Scientific notation 2.1249939 × 10^7
Engineering notation 2.1249939 × 10^6

Prime Factorization of 21249939

Prime Factorization 3 × 541 × 13093

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21249939
Product of the distinct prime numbers

The prime factorization of 21249939 is 3 × 541 × 13093. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21249939)

Multiplication

n×y
n×2 42499878
n×3 63749817
n×4 84999756
n×5 106249695

Division

n÷y
n÷2 10624969.5
n÷3 7083313
n÷3 5312484.75
n÷5 4249987.8

Exponentiation

ny
n2 451559907503721
n3 9.5956204892997E+21
n4 2.0390635006477E+29
n5 4.332997500589E+36

Nth Root

y√n
2√n 4609.7656122627
3√n 276.98264780284
4√n 67.895254710935
5√n 29.205963461278

Divisors of 21249939

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21249938
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21249939 can be divided by 8 positive divisors. The sum of these divisors (counting 21249939) is 1, the average is 0.125.

Base conversion 21249939

Base System Value
2 Binary 1010001000011111110010011
3 Ternary 1110222121102210
4 Quaternary 1101003332103
5 Quinary 20414444224
6 Senary 2035243203
8 Octal 121037623
10 Decimal 21249939
12 Duodecimal 7149503
16 Hexadecimal 1443f93
20 Vigesimal 6cg4gj
36 Base36 cngk3

Cryptographic Hash Functions

md5 87afe4e7cdac6f67294f2aa4adb9f2b0
sha1 8863545aa7c97dbe07ff05d33d6b971e36f2376b
sha256 f43cd1dffca968186f0771792bfd508d20726a7e7fe017687506770ec5628aa2
sha512 eb25a241e40bcadfac4749e8bcf63f3a8ac2b36fc6590e40d3482868acad151853cb43d854432def14905e8ddf4be5937283ba39d9188359fd497907b5c56d2a
ripemd-160 67706a83912a037f0d6868f3138fa9242f341751

21249939 as geometric shapes

Circle

Radius = n
Diameter 42499878
Circumference 133517304.50326
Area 1.4186172880694E+15

Sphere

Radius = n
Volume 4.0194041114426E+22
Surface area 5.6744691522775E+15
Circumference 133517304.50326

Square

Length = n
Perimeter 84999756
Area 451559907503721
Diagonal 30051951.933401

Cube

Length = n
Surface area 2709359445022326
Volume 9.5956204892997E+21
Space diagonal 36805974.005739

Equilateral Triangle

Length = n
Perimeter 63749817
Area 1.9553117561439E+14
Altitude 18402987.00287

Triangular Pyramid

Length = n
Surface area 1.9553117561439E+14
Volume 1.1308547196127E+21
Height 10017317.311134