21897908 (number)

21897908 is an even 8-digits composite number following 21897907 and preceding 21897909. In scientific notation, it is written as 2.1897908 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 6 positive divisors. There are 10948952 positive integers (up to 21897908) that are relatively prime to 21897908.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred ninety-seven thousand nine hundred eight

Notation

Scientific notation 2.1897908 × 10^7
Engineering notation 2.1897908 × 10^6

Prime Factorization of 21897908

Prime Factorization 2 × 2 × 5474477

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 10948954
Product of the distinct prime numbers

The prime factorization of 21897908 is 2 × 2 × 5474477. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 6, 43, 68, 845, 759, 7746, 4104, 63698, 94793, 407074, 460543, 5337061, 1185379, 87876830, 40645820, 636571262, 828520862, 3322226884, 1353297117

Basic calculations (n = 21897908)

Multiplication

n×y
n×2 43795816
n×3 65693724
n×4 87591632
n×5 109489540

Division

n÷y
n÷2 10948954
n÷3 7299302.6666667
n÷3 5474477
n÷5 4379581.6

Exponentiation

ny
n2 479518374776464
n3 1.0500449255165E+22
n4 2.2993787174826E+29
n5 5.0351583612592E+36

Nth Root

y√n
2√n 4679.5200608609
3√n 279.76982784715
4√n 68.407017628756
5√n 29.381943911981

Divisors of 21897908

1, 2, 4, 5474477, 10948954, 21897908

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21897907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21897908 can be divided by 6 positive divisors. The sum of these divisors (counting 21897908) is 1, the average is 0.16666666666667.

Base conversion 21897908

Base System Value
2 Binary 1010011100010001010110100
3 Ternary 1112012112021122
4 Quaternary 1103202022310
5 Quinary 21101213113
6 Senary 2101203112
8 Octal 123421264
10 Decimal 21897908
12 Duodecimal 7400498
16 Hexadecimal 14e22b4
20 Vigesimal 6gh4f8
36 Base36 d1cj8

Cryptographic Hash Functions

md5 be568a51faf2d5a80cf9c9341c09f5fd
sha1 b47ca7a91bfd85d17c442b878d8440e9517f0c23
sha256 de41ccb7f95d475f97f973e1841cdf0ec84310ed634116f4b6ffcaeba001709d
sha512 d4ce4f55f4c78a09256b113652463c33cfa86910fd54741a3b7afda6a7cb6ee6ad269ce021aa322e8f0c5068490df686a01046b6f400337ef9cac2fe72385320
ripemd-160 db39f840c7c21c848ab426f7948d6990ddb2c97c

21897908 as geometric shapes

Circle

Radius = n
Diameter 43795816
Circumference 137588613.80357
Area 1.5064514034591E+15

Sphere

Radius = n
Volume 4.398417898589E+22
Surface area 6.0258056138362E+15
Circumference 137588613.80357

Square

Length = n
Perimeter 87591632
Area 479518374776464
Diagonal 30968318.481198

Cube

Length = n
Surface area 2877110248658784
Volume 1.0500449255165E+22
Space diagonal 37928289.235469

Equilateral Triangle

Length = n
Perimeter 65693724
Area 2.0763754706892E+14
Altitude 18964144.617734

Triangular Pyramid

Length = n
Surface area 2.0763754706892E+14
Volume 1.2374898123053E+21
Height 10322772.827066