21231921 (number)

21231921 is an odd 8-digits composite number following 21231920 and preceding 21231922. In scientific notation, it is written as 2.1231921 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 13249104 positive integers (up to 21231921) that are relatively prime to 21231921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1231921 × 10^7
Engineering notation 2.1231921 × 10^6

Prime Factorization of 21231921

Prime Factorization 23 × 3 × 47 × 6547

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21231921
Product of the distinct prime numbers

The prime factorization of 21231921 is 23 × 3 × 47 × 6547. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 64, 37, 469, 212, 6664, 8460, 83761, 69197, 477843, 493724, 2769861, 1429187, 11537966, 12273911, 218994075, 117570483, 7793363706, 6149098296

Basic calculations (n = 21231921)

Multiplication

n×y
n×2 42463842
n×3 63695763
n×4 84927684
n×5 106159605

Division

n÷y
n÷2 10615960.5
n÷3 7077307
n÷3 5307980.25
n÷5 4246384.2

Exponentiation

ny
n2 450794469350241
n3 9.5712325604812E+21
n4 2.0321565359677E+29
n5 4.3146587031299E+36

Nth Root

y√n
2√n 4607.8108685145
3√n 276.90434036931
4√n 67.880857894656
5√n 29.201008984755

Divisors of 21231921

1, 3, 23, 47, 69, 141, 1081, 3243, 6547, 19641, 150581, 307709, 451743, 923127, 7077307, 21231921

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 -21231920
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 21231921 can be divided by 16 positive divisors. The sum of these divisors (counting 21231921) is 1, the average is 0.0625.

Base conversion 21231921

Base System Value
2 Binary 1010000111111100100110001
3 Ternary 1110221200201110
4 Quaternary 1100333210301
5 Quinary 20413410141
6 Senary 2035023533
8 Octal 120774461
10 Decimal 21231921
12 Duodecimal 713aba9
16 Hexadecimal 143f931
20 Vigesimal 6cdjg1
36 Base36 cn2nl

Cryptographic Hash Functions

md5 8ac392e89d81b45f4835fbbedb16277f
sha1 57615828bedd797038e3441ac89170467643b79f
sha256 c5e6dadf859c7e46a98741612bc46bc8d56d1daa7396e4c6505edce0f36f1d7d
sha512 6fbbe2b963681879859db3a58f36683ed319e45b76b17e923c452626c7bc1a4c42970d53d29ab70438e6d2a3a50b3d6f4439b4fd84192a8f747243dd3ceb60db
ripemd-160 b162ce3b1287da1a259f51590c3c2ee5b0247855

21231921 as geometric shapes

Circle

Radius = n
Diameter 42463842
Circumference 133404094.0704
Area 1.4162125931896E+15

Sphere

Radius = n
Volume 4.0091885197076E+22
Surface area 5.6648503727585E+15
Circumference 133404094.0704

Square

Length = n
Perimeter 84927684
Area 450794469350241
Diagonal 30026470.633434

Cube

Length = n
Surface area 2704766816101446
Volume 9.5712325604812E+21
Space diagonal 36774765.914289

Equilateral Triangle

Length = n
Perimeter 63695763
Area 1.9519973117142E+14
Altitude 18387382.957144

Triangular Pyramid

Length = n
Surface area 1.9519973117142E+14
Volume 1.1279805746383E+21
Height 10008823.544478