21856989 (number)

21856989 is an odd 8-digits composite number following 21856988 and preceding 21856990. In scientific notation, it is written as 2.1856989 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 11348400 positive integers (up to 21856989) that are relatively prime to 21856989.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred fifty-six thousand nine hundred eighty-nine

Notation

Scientific notation 2.1856989 × 10^7
Engineering notation 2.1856989 × 10^6

Prime Factorization of 21856989

Prime Factorization 3 × 539 × 7 × 1931

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21856989
Product of the distinct prime numbers

The prime factorization of 21856989 is 3 × 539 × 7 × 1931. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 77, 46, 483, 953, 8238, 5831, 62777, 80040, 36470, 10327, 1942834, 9513579, 62729543, 23772334, 688723251, 296259644, 1363256874, 3527883539

Basic calculations (n = 21856989)

Multiplication

n×y
n×2 43713978
n×3 65570967
n×4 87427956
n×5 109284945

Division

n÷y
n÷2 10928494.5
n÷3 7285663
n÷3 5464247.25
n÷5 4371397.8

Exponentiation

ny
n2 477727968146121
n3 1.0441694944762E+22
n4 2.2822401154902E+29
n5 4.9882897099628E+36

Nth Root

y√n
2√n 4675.1458800769
3√n 279.59545746722
4√n 68.375038428339
5√n 29.370954922382

Divisors of 21856989

1, 3, 7, 21, 539, 1617, 1931, 3773, 5793, 11319, 13517, 40551, 1040809, 3122427, 7285663, 21856989

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 -21856988
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 21856989 can be divided by 16 positive divisors. The sum of these divisors (counting 21856989) is 1, the average is 0.0625.

Base conversion 21856989

Base System Value
2 Binary 1010011011000001011011101
3 Ternary 1112010110011010
4 Quaternary 1103120023131
5 Quinary 21043410424
6 Senary 2100245433
8 Octal 123301335
10 Decimal 21856989
12 Duodecimal 73a0879
16 Hexadecimal 14d82dd
20 Vigesimal 6gc299
36 Base36 d0gyl

Cryptographic Hash Functions

md5 4baf46aac3648890116e621850c72524
sha1 4c44e15171df45d70467a121d488b4c5d1b2197f
sha256 6efa171bbd132d82382fbcf3e184f94c777e27e0bf72c441dd6a1a5d84f01bc6
sha512 7e4e6d0c2a4fe427833c2baaeb3dc2921926ab2019c39c2c9293b7de9179b6ec2653aa72916b967f159971f99199c6060f16a3bafd5c65ca280fb56b656c3099
ripemd-160 47f8785b0e63e28b1451304f56d40a619fa35652

21856989 as geometric shapes

Circle

Radius = n
Diameter 43713978
Circumference 137331512.14399
Area 1.5008266751422E+15

Sphere

Radius = n
Volume 4.3738069505987E+22
Surface area 6.0033067005689E+15
Circumference 137331512.14399

Square

Length = n
Perimeter 87427956
Area 477727968146121
Diagonal 30910450.27644

Cube

Length = n
Surface area 2866367808876726
Volume 1.0441694944762E+22
Space diagonal 37857415.448474

Equilateral Triangle

Length = n
Perimeter 65570967
Area 2.0686227825643E+14
Altitude 18928707.724237

Triangular Pyramid

Length = n
Surface area 2.0686227825643E+14
Volume 1.2305655504204E+21
Height 10303483.42548