21581937 (number)

21581937 is an odd 8-digits composite number following 21581936 and preceding 21581938. In scientific notation, it is written as 2.1581937 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 16 positive divisors. There are 13280976 positive integers (up to 21581937) that are relatively prime to 21581937.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1581937 × 10^7
Engineering notation 2.1581937 × 10^6

Prime Factorization of 21581937

Prime Factorization 3 × 3 × 3 × 13 × 61487

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2397993
Product of the distinct prime numbers

The prime factorization of 21581937 is 3 × 3 × 3 × 13 × 61487. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 8, 5, 14, 814, 532, 9789, 6489, 22785, 98146, 731406, 458449, 7356963, 4091206, 14797833, 46464073, 979006059, 421447969, 2986646090, 8311727046

Basic calculations (n = 21581937)

Multiplication

n×y
n×2 43163874
n×3 64745811
n×4 86327748
n×5 107909685

Division

n÷y
n÷2 10790968.5
n÷3 7193979
n÷3 5395484.25
n÷5 4316387.4

Exponentiation

ny
n2 465780004671969
n3 1.005243471669E+22
n4 2.1695101275222E+29
n5 4.6822230893046E+36

Nth Root

y√n
2√n 4645.6363396202
3√n 278.41767779394
4√n 68.158905064711
5√n 29.296658189736

Divisors of 21581937

1, 3, 9, 13, 27, 39, 117, 351, 61487, 184461, 553383, 799331, 1660149, 2397993, 7193979, 21581937

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 -21581936
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 21581937 can be divided by 16 positive divisors. The sum of these divisors (counting 21581937) is 1, the average is 0.0625.

Base conversion 21581937

Base System Value
2 Binary 1010010010101000001110001
3 Ternary 1111121110212000
4 Quaternary 1102111001301
5 Quinary 21011110222
6 Senary 2050324213
8 Octal 122250161
10 Decimal 21581937
12 Duodecimal 7289669
16 Hexadecimal 1495071
20 Vigesimal 6ehegh
36 Base36 cukq9

Cryptographic Hash Functions

md5 a54004675df8834034f24001873a36db
sha1 77e4c377cf0b4c2bc0fd732689ef3d738cc000c9
sha256 be3eaac70706de718c9f8c5d55e9978e21d98bd3bc066454f9c360354cbc4e26
sha512 1512255cd8e1968b0aa98da6fc48e25982f896cdec073369d532a33130713deae550dd86f68747e5e5cd15c912e42083c70147272c34fc581409e37c41ff6c07
ripemd-160 fc750c4b66da9d197702033fa0ee8f9f1a232cd1

21581937 as geometric shapes

Circle

Radius = n
Diameter 43163874
Circumference 135603309.45888
Area 1.4632910408665E+15

Sphere

Radius = n
Volume 4.2107540075526E+22
Surface area 5.8531641634659E+15
Circumference 135603309.45888

Square

Length = n
Perimeter 86327748
Area 465780004671969
Diagonal 30521468.007682

Cube

Length = n
Surface area 2794680028031814
Volume 1.005243471669E+22
Space diagonal 37381011.409751

Equilateral Triangle

Length = n
Perimeter 64745811
Area 2.0168865831038E+14
Altitude 18690505.704875

Triangular Pyramid

Length = n
Surface area 2.0168865831038E+14
Volume 1.1846907926011E+21
Height 10173822.669227