20402785 (number)

20402785 is an odd 8-digits composite number following 20402784 and preceding 20402786. In scientific notation, it is written as 2.0402785 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 15066624 positive integers (up to 20402785) that are relatively prime to 20402785.

Interesting facts

Basic properties

Name

Name twenty million four hundred two thousand seven hundred eighty-five

Notation

Scientific notation 2.0402785 × 10^7
Engineering notation 2.0402785 × 10^6

Prime Factorization of 20402785

Prime Factorization 5 × 13 × 313889

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20402785
Product of the distinct prime numbers

The prime factorization of 20402785 is 5 × 13 × 313889. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 10, 2, 56, 743, 623, 5900, 5014, 71947, 45218, 528766, 990187, 6355604, 3554928, 84019838, 98216003, 923114268, 207986660, 5686640799, 8221947686

Basic calculations (n = 20402785)

Multiplication

n×y
n×2 40805570
n×3 61208355
n×4 81611140
n×5 102013925

Division

n÷y
n÷2 10201392.5
n÷3 6800928.3333333
n÷3 5100696.25
n÷5 4080557

Exponentiation

ny
n2 416273635756225
n3 8.4931414915026E+21
n4 1.7328373982571E+29
n5 3.5354708876598E+36

Nth Root

y√n
2√n 4516.9442104148
3√n 273.25187522413
4√n 67.208215349128
5√n 28.969292620324

Divisors of 20402785

1, 5, 13, 65, 313889, 1569445, 4080557, 20402785

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20402784
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20402785 can be divided by 8 positive divisors. The sum of these divisors (counting 20402785) is 1, the average is 0.125.

Base conversion 20402785

Base System Value
2 Binary 1001101110101001001100001
3 Ternary 1102101120100201
4 Quaternary 1031311021201
5 Quinary 20210342120
6 Senary 2005145201
8 Octal 115651141
10 Decimal 20402785
12 Duodecimal 69bb201
16 Hexadecimal 1375261
20 Vigesimal 67a6j5
36 Base36 c5aw1

Cryptographic Hash Functions

md5 a84ab3c95b118775ca5021af7d5e9bdf
sha1 b900c045abf8506d805fbbea59950930623a0cb4
sha256 39db0ec5a5c0275faf0e4f0a4720d2bb9ac9bafb6d2adec792338eed1e976ada
sha512 03ae153d0cd222b01fe96b8e6543c7a99195eeb04f8f5e2a66d340534e4433c94f068add19770a4ef4ff7d352751479b98fa3be7b182288d5a35d32504079ad5
ripemd-160 79cd89bd0a91c5b8899e046c67de7e44633480e0

20402785 as geometric shapes

Circle

Radius = n
Diameter 40805570
Circumference 128194478.93754
Area 1.3077621959749E+15

Sphere

Radius = n
Volume 3.5575987887471E+22
Surface area 5.2310487838995E+15
Circumference 128194478.93754

Square

Length = n
Perimeter 81611140
Area 416273635756225
Diagonal 28853895.257182

Cube

Length = n
Surface area 2497641814537350
Volume 8.4931414915026E+21
Space diagonal 35338660.235904

Equilateral Triangle

Length = n
Perimeter 61208355
Area 1.802517717453E+14
Altitude 17669330.117952

Triangular Pyramid

Length = n
Surface area 1.802517717453E+14
Volume 1.000926323703E+21
Height 9617965.0857274