20531921 (number)

20531921 is an odd 8-digits composite number following 20531920 and preceding 20531922. In scientific notation, it is written as 2.0531921 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 20510052 positive integers (up to 20531921) that are relatively prime to 20531921.

Interesting facts

Basic properties

Name

Name twenty million five hundred thirty-one thousand nine hundred twenty-one

Notation

Scientific notation 2.0531921 × 10^7
Engineering notation 2.0531921 × 10^6

Prime Factorization of 20531921

Prime Factorization 983 × 20887

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20531921
Product of the distinct prime numbers

The prime factorization of 20531921 is 983 × 20887. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20531921)

Multiplication

n×y
n×2 41063842
n×3 61595763
n×4 82127684
n×5 102659605

Division

n÷y
n÷2 10265960.5
n÷3 6843973.6666667
n÷3 5132980.25
n÷5 4106384.2

Exponentiation

ny
n2 421559779950241
n3 8.6554320987157E+21
n4 1.777126480717E+29
n5 3.6487820509089E+36

Nth Root

y√n
2√n 4531.2162826332
3√n 273.82716380775
4√n 67.314309642402
5√n 29.005871383691

Divisors of 20531921

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20531920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20531921 can be divided by 4 positive divisors. The sum of these divisors (counting 20531921) is 1, the average is 0.25.

Base conversion 20531921

Base System Value
2 Binary 1001110010100101011010001
3 Ternary 1102122010111112
4 Quaternary 1032110223101
5 Quinary 20224010141
6 Senary 2012023105
8 Octal 116245321
10 Decimal 20531921
12 Duodecimal 6a61a95
16 Hexadecimal 1394ad1
20 Vigesimal 6869g1
36 Base36 c82j5

Cryptographic Hash Functions

md5 6c4d80e0b9637db5846d6634b9968535
sha1 4b4858b48167e5919eba462665b7ba2ce244ae5b
sha256 33baeb9ca1ba468604be9650518591031936be3fb1d1c03fa49037c4826f0845
sha512 06d1445b7a0024408fc87e2867b27f5c14b1bdb87aa08b1a613a7ccd6e635b8d003e83a0be102bd363a45ab7e4e7aa5aea3c9385e4f43756db2d4c04e5985f16
ripemd-160 d9d64d2791152ad5d8f39829d6d3b0df06c5951c

20531921 as geometric shapes

Circle

Radius = n
Diameter 41063842
Circumference 129005864.35537
Area 1.3243691077406E+15

Sphere

Radius = n
Volume 3.6255789193294E+22
Surface area 5.2974764309624E+15
Circumference 129005864.35537

Square

Length = n
Perimeter 82127684
Area 421559779950241
Diagonal 29036521.139773

Cube

Length = n
Surface area 2529358679701446
Volume 8.6554320987157E+21
Space diagonal 35562330.34899

Equilateral Triangle

Length = n
Perimeter 61595763
Area 1.8254073932534E+14
Altitude 17781165.174495

Triangular Pyramid

Length = n
Surface area 1.8254073932534E+14
Volume 1.0200524551836E+21
Height 9678840.3799243