21493387 (number)

21493387 is an odd 8-digits prime number following 21493386 and preceding 21493388. In scientific notation, it is written as 2.1493387 × 10^7. The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors. There are 21493386 positive integers (up to 21493387) that are relatively prime to 21493387.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand three hundred eighty-seven

Notation

Scientific notation 2.1493387 × 10^7
Engineering notation 2.1493387 × 10^6

Prime Factorization of 21493387

Prime Factorization 21493387

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21493387
Product of the distinct prime numbers

The prime factorization of 21493387 is 21493387. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 10, 70, 63, 806, 156, 1485, 5719, 29625, 26824, 985114, 681637, 9037434, 7423856, 49715341, 21871007, 729415444, 83354437, 35101867, 5956642105

Basic calculations (n = 21493387)

Multiplication

n×y
n×2 42986774
n×3 64480161
n×4 85973548
n×5 107466935

Division

n÷y
n÷2 10746693.5
n÷3 7164462.3333333
n÷3 5373346.75
n÷5 4298677.4

Exponentiation

ny
n2 461965684731769
n3 9.9292072426599E+21
n4 2.1341229386969E+29
n5 4.586953022699E+36

Nth Root

y√n
2√n 4636.0960947763
3√n 278.03637620715
4√n 68.088883782717
5√n 29.27257798606

Divisors of 21493387

1, 21493387

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21493388
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10746694
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4636.0962026257
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999069481
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21493387 can be divided by 2 positive divisors. The sum of these divisors (counting 21493387) is 21493388, the average is 10746694.

Base conversion 21493387

Base System Value
2 Binary 1010001111111011010001011
3 Ternary 1111102222101101
4 Quaternary 1101333122023
5 Quinary 21000242022
6 Senary 2044402231
8 Octal 121773213
10 Decimal 21493387
12 Duodecimal 7246377
16 Hexadecimal 147f68b
20 Vigesimal 6e6d97
36 Base36 csoej

Cryptographic Hash Functions

md5 61acede2a050654e23d76048d92f3ec1
sha1 108b5180aac7986752b1b6b9cf2db00f3a48521a
sha256 bdebec3c1281bd7bc1f5ce96f011a72fa3ac3dacb36fa8f7b246dfed8d8c45c9
sha512 89fbcb5e874a44ea9e7befdd9f6ffd43579a14e13fa0df55c19e9ca91d181cb6753d0bc462a0cbcf31d4514b3a9b1acf9a14ccb1bddbe1ea340a848b79f4963a
ripemd-160 12b7f8371d69171ef5ad8ef5d491bdf6896dc030

21493387 as geometric shapes

Circle

Radius = n
Diameter 42986774
Circumference 135046933.39992
Area 1.4513080013639E+15

Sphere

Radius = n
Volume 4.1591366039348E+22
Surface area 5.8052320054556E+15
Circumference 135046933.39992

Square

Length = n
Perimeter 85973548
Area 461965684731769
Diagonal 30396239.396734

Cube

Length = n
Surface area 2771794108390614
Volume 9.9292072426599E+21
Space diagonal 37227638.31074

Equilateral Triangle

Length = n
Perimeter 64480161
Area 2.0003700932719E+14
Altitude 18613819.15537

Triangular Pyramid

Length = n
Surface area 2.0003700932719E+14
Volume 1.1701682955152E+21
Height 10132079.798911