21354987 (number)

21354987 is an odd 8-digits composite number following 21354986 and preceding 21354988. In scientific notation, it is written as 2.1354987 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 13941312 positive integers (up to 21354987) that are relatively prime to 21354987.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred fifty-four thousand nine hundred eighty-seven

Notation

Scientific notation 2.1354987 × 10^7
Engineering notation 2.1354987 × 10^6

Prime Factorization of 21354987

Prime Factorization 3 × 83 × 617 × 139

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21354987
Product of the distinct prime numbers

The prime factorization of 21354987 is 3 × 83 × 617 × 139. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 5, 48, 22, 771, 147, 3171, 5003, 35363, 67425, 175872, 337953, 1267032, 6202940, 11705593, 78377555, 764578362, 297460982, 2475696816, 7006391540

Basic calculations (n = 21354987)

Multiplication

n×y
n×2 42709974
n×3 64064961
n×4 85419948
n×5 106774935

Division

n÷y
n÷2 10677493.5
n÷3 7118329
n÷3 5338746.75
n÷5 4270997.4

Exponentiation

ny
n2 456035469770169
n3 9.7386315284809E+21
n4 2.079683496885E+29
n5 4.4411614040093E+36

Nth Root

y√n
2√n 4621.145637177
3√n 277.43831434666
4√n 67.979008798136
5√n 29.234782172947

Divisors of 21354987

1, 3, 83, 139, 249, 417, 617, 1851, 11537, 34611, 51211, 85763, 153633, 257289, 7118329, 21354987

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 -21354986
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 21354987 can be divided by 16 positive divisors. The sum of these divisors (counting 21354987) is 1, the average is 0.0625.

Base conversion 21354987

Base System Value
2 Binary 1010001011101100111101011
3 Ternary 1111011221112110
4 Quaternary 1101131213223
5 Quinary 20431324422
6 Senary 2041413403
8 Octal 121354753
10 Decimal 21354987
12 Duodecimal 719a263
16 Hexadecimal 145d9eb
20 Vigesimal 6d9797
36 Base36 cppm3

Cryptographic Hash Functions

md5 cf460962dc91246c9f0139d5c041da1e
sha1 b1414acb198a71909cd24fd8ef3388f77fdf4303
sha256 e92ff2acfa70af23f8e17004e817bfaa36d9bcd24d27d8fd09b036d4191eed43
sha512 e250b850f2149b11fefb217b70292d4d80ce3680b3e8d123522a95ff98e54a73c3062453e8986470e39687c9aa6ec82164bc66c74bcac27df9d4e46a2572ef79
ripemd-160 dd3cade1ea5d83a99a37ad15f0468df342170828

21354987 as geometric shapes

Circle

Radius = n
Diameter 42709974
Circumference 134177340.55341
Area 1.4326776816063E+15

Sphere

Radius = n
Volume 4.0793084354525E+22
Surface area 5.7307107264253E+15
Circumference 134177340.55341

Square

Length = n
Perimeter 85419948
Area 456035469770169
Diagonal 30200512.239701

Cube

Length = n
Surface area 2736212818621014
Volume 9.7386315284809E+21
Space diagonal 36987922.478973

Equilateral Triangle

Length = n
Perimeter 64064961
Area 1.9746915092387E+14
Altitude 18493961.239486

Triangular Pyramid

Length = n
Surface area 1.9746915092387E+14
Volume 1.147708732211E+21
Height 10066837.413234