21897488 (number)

21897488 is an even 8-digits composite number following 21897487 and preceding 21897489. In scientific notation, it is written as 2.1897488 × 10^7. The sum of its digits is 47. It has a total of 6 prime factors and 20 positive divisors. There are 10412928 positive integers (up to 21897488) that are relatively prime to 21897488.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1897488 × 10^7
Engineering notation 2.1897488 × 10^6

Prime Factorization of 21897488

Prime Factorization 2 × 2 × 2 × 2 × 1739 × 787

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2737186
Product of the distinct prime numbers

The prime factorization of 21897488 is 2 × 2 × 2 × 2 × 1739 × 787. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 2, 28, 17, 504, 168, 2090, 411, 70143, 40956, 465713, 852419, 9061772, 8922782, 18122541, 65315200, 992980218, 63422003, 4977092272, 7674587433

Basic calculations (n = 21897488)

Multiplication

n×y
n×2 43794976
n×3 65692464
n×4 87589952
n×5 109487440

Division

n÷y
n÷2 10948744
n÷3 7299162.6666667
n÷3 5474372
n÷5 4379497.6

Exponentiation

ny
n2 479499980710144
n3 1.0499845073601E+22
n4 2.2992023150103E+29
n5 5.034675510251E+36

Nth Root

y√n
2√n 4679.4751842488
3√n 279.76803918193
4√n 68.406689616212
5√n 29.381831202483

Divisors of 21897488

1, 2, 4, 8, 16, 787, 1574, 1739, 3148, 3478, 6296, 6956, 12592, 13912, 27824, 1368593, 2737186, 5474372, 10948744, 21897488

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21897487
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21897488 can be divided by 20 positive divisors. The sum of these divisors (counting 21897488) is 1, the average is 0.05.

Base conversion 21897488

Base System Value
2 Binary 1010011100010000100010000
3 Ternary 1112012111201002
4 Quaternary 1103202010100
5 Quinary 21101204423
6 Senary 2101201132
8 Octal 123420420
10 Decimal 21897488
12 Duodecimal 74001a8
16 Hexadecimal 14e2110
20 Vigesimal 6gh3e8
36 Base36 d1c7k

Cryptographic Hash Functions

md5 b5c1ef2705f5619fbe3cec0c036e6b60
sha1 4ce144049d8d956e16ba56692b44dd4f39e773eb
sha256 4c8e1ca0ee3c6b1a612670c67783bca308520253dad69aba1383dc44b2c71f4d
sha512 63bb994d758cdee9b3d7ae52052eff0fd4373c79a354e7c7d00586dff02addc9add6f8eafdcb989e7a5873f9a378f20ea7ca03282f95e09337207d84edd274a6
ripemd-160 58304da6fcc4cd4de9abdc1ab207581812abb9db

21897488 as geometric shapes

Circle

Radius = n
Diameter 43794976
Circumference 137585974.86574
Area 1.5063936167954E+15

Sphere

Radius = n
Volume 4.3981648196073E+22
Surface area 6.0255744671817E+15
Circumference 137585974.86574

Square

Length = n
Perimeter 87589952
Area 479499980710144
Diagonal 30967724.511502

Cube

Length = n
Surface area 2876999884260864
Volume 1.0499845073601E+22
Space diagonal 37927561.77413

Equilateral Triangle

Length = n
Perimeter 65692464
Area 2.0762958220457E+14
Altitude 18963780.887065

Triangular Pyramid

Length = n
Surface area 2.0762958220457E+14
Volume 1.2374186088252E+21
Height 10322574.837167