16405985 (number)

16405985 is an odd 8-digits composite number following 16405984 and preceding 16405986. In scientific notation, it is written as 1.6405985 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 12769920 positive integers (up to 16405985) that are relatively prime to 16405985.

Interesting facts

Basic properties

Name

Name sixteen million four hundred five thousand nine hundred eighty-five

Notation

Scientific notation 1.6405985 × 10^7
Engineering notation 1.6405985 × 10^6

Prime Factorization of 16405985

Prime Factorization 5 × 37 × 88681

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 16405985
Product of the distinct prime numbers

The prime factorization of 16405985 is 5 × 37 × 88681. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 10, 82, 56, 973, 726, 3808, 7685, 4689, 32820, 766293, 538721, 3900247, 3587867, 19653341, 15223468, 965625433, 429579292, 5566159989, 8886965988

Basic calculations (n = 16405985)

Multiplication

n×y
n×2 32811970
n×3 49217955
n×4 65623940
n×5 82029925

Division

n÷y
n÷2 8202992.5
n÷3 5468661.6666667
n÷3 4101496.25
n÷5 3281197

Exponentiation

ny
n2 269156343820225
n3 4.4157749393695E+21
n4 7.2445137418671E+28
n5 1.1885338378137E+36

Nth Root

y√n
2√n 4050.4302240626
3√n 254.09772109458
4√n 63.642990376495
5√n 27.733230550737

Divisors of 16405985

1, 5, 37, 185, 88681, 443405, 3281197, 16405985

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 -16405984
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 16405985 can be divided by 8 positive divisors. The sum of these divisors (counting 16405985) is 1, the average is 0.125.

Base conversion 16405985

Base System Value
2 Binary 111110100101010111100001
3 Ternary 1010212111210002
4 Quaternary 332211113201
5 Quinary 13144442420
6 Senary 1343345345
8 Octal 76452741
10 Decimal 16405985
12 Duodecimal 55b2255
16 Hexadecimal fa55e1
20 Vigesimal 52aej5
36 Base36 9rmxt

Cryptographic Hash Functions

md5 6309ede9f1c7a84ff2d3ef312c3746b2
sha1 63cb0103682357f39e866969257c12ef0e58e155
sha256 8dd361e9ee424961980b98280cd67b2263633b27cc48d97341074e4e7f222180
sha512 05665a60beb015855eab4fce4c7edddb3abcd2eeb09e9d3303402710a90ba9869ef9b9d8670e6cdc53c1931ebf329532cf046e02d0b2036de18be840ea49dbca
ripemd-160 456946f0aaaf0d600b8513507e050d9022d9e6bf

16405985 as geometric shapes

Circle

Radius = n
Diameter 32811970
Circumference 103081843.90181
Area 8.4557959241271E+14

Sphere

Radius = n
Volume 1.8496754812572E+22
Surface area 3.3823183696508E+15
Circumference 103081843.90181

Square

Length = n
Perimeter 65623940
Area 269156343820225
Diagonal 23201566.49109

Cube

Length = n
Surface area 1614938062921350
Volume 4.4157749393695E+21
Space diagonal 28415999.568213

Equilateral Triangle

Length = n
Perimeter 49217955
Area 1.1654811566903E+14
Altitude 14207999.784106

Triangular Pyramid

Length = n
Surface area 1.1654811566903E+14
Volume 5.2040406730363E+20
Height 7733855.4970299