20451490 (number)

20451490 is an even 8-digits composite number following 20451489 and preceding 20451491. In scientific notation, it is written as 2.0451490 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 8099200 positive integers (up to 20451490) that are relatively prime to 20451490.

Interesting facts

Basic properties

Name

Name twenty million four hundred fifty-one thousand four hundred ninety

Notation

Scientific notation 2.0451490 × 10^7
Engineering notation 2.0451490 × 10^6

Prime Factorization of 20451490

Prime Factorization 2 × 5 × 101 × 20249

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20451490
Product of the distinct prime numbers

The prime factorization of 20451490 is 2 × 5 × 101 × 20249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 14, 12, 564, 578, 7328, 4840, 51372, 66411, 730121, 914990, 3893406, 3054321, 87481900, 76482718, 215372930, 458151851, 4208139133, 938729133

Basic calculations (n = 20451490)

Multiplication

n×y
n×2 40902980
n×3 61354470
n×4 81805960
n×5 102257450

Division

n÷y
n÷2 10225745
n÷3 6817163.3333333
n÷3 5112872.5
n÷5 4090298

Exponentiation

ny
n2 418263443220100
n3 8.5541106263814E+21
n4 1.7494430793433E+29
n5 3.5778717642759E+36

Nth Root

y√n
2√n 4522.3323628411
3√n 273.46913570299
4√n 67.248288921289
5√n 28.983110381486

Divisors of 20451490

1, 2, 5, 10, 101, 202, 505, 1010, 20249, 40498, 101245, 202490, 2045149, 4090298, 10225745, 20451490

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 -20451489
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 20451490 can be divided by 16 positive divisors. The sum of these divisors (counting 20451490) is 1, the average is 0.0625.

Base conversion 20451490

Base System Value
2 Binary 1001110000001000010100010
3 Ternary 1102111001011121
4 Quaternary 1032001002202
5 Quinary 20213421430
6 Senary 2010202454
8 Octal 116010242
10 Decimal 20451490
12 Duodecimal 6a2342a
16 Hexadecimal 13810a2
20 Vigesimal 67g8ea
36 Base36 c6cgy

Cryptographic Hash Functions

md5 0150ac1d1a6700fd06f19c8047864b8c
sha1 1b8faced3cb7975ee02c015c040b795e799541a9
sha256 0ed426625da4d32691e65781ad52518503811163e3a908cb110a2ab60c64650c
sha512 bf3a3edf541ffcb9e926bba78cb286e59bc737e9d2fb050b9fcf4e21d0811843d627cba39eea3a14353ca8921208470d81c7e4691a73bc7395e361ff2543b0e6
ripemd-160 29404929c0998159a0ac26800823ea9f9cf54ec4

20451490 as geometric shapes

Circle

Radius = n
Diameter 40902980
Circumference 128500501.47793
Area 1.3140133604854E+15

Sphere

Radius = n
Volume 3.5831374802446E+22
Surface area 5.2560534419418E+15
Circumference 128500501.47793

Square

Length = n
Perimeter 81805960
Area 418263443220100
Diagonal 28922774.528738

Cube

Length = n
Surface area 2509580659320600
Volume 8.5541106263814E+21
Space diagonal 35423019.770487

Equilateral Triangle

Length = n
Perimeter 61354470
Area 1.8111338365148E+14
Altitude 17711509.885243

Triangular Pyramid

Length = n
Surface area 1.8111338365148E+14
Volume 1.0081116051557E+21
Height 9640924.8429126