16398981 (number)

16398981 is an odd 8-digits composite number following 16398980 and preceding 16398982. In scientific notation, it is written as 1.6398981 × 10^7. The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors. There are 10932648 positive integers (up to 16398981) that are relatively prime to 16398981.

Interesting facts

Basic properties

Name

Name sixteen million three hundred ninety-eight thousand nine hundred eighty-one

Notation

Scientific notation 1.6398981 × 10^7
Engineering notation 1.6398981 × 10^6

Prime Factorization of 16398981

Prime Factorization 9 × 1822109

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 16398981
Product of the distinct prime numbers

The prime factorization of 16398981 is 9 × 1822109. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 8, 67, 364, 538, 3686, 2818, 52937, 76836, 361441, 693910, 1723757, 5073684, 73288793, 73323975, 680199261, 585889680, 713498823, 9066937168

Basic calculations (n = 16398981)

Multiplication

n×y
n×2 32797962
n×3 49196943
n×4 65595924
n×5 81994905

Division

n÷y
n÷2 8199490.5
n÷3 5466327
n÷3 4099745.25
n÷5 3279796.2

Exponentiation

ny
n2 268926577838361
n3 4.4101218403663E+21
n4 7.2321504267852E+28
n5 1.1859989743799E+36

Nth Root

y√n
2√n 4049.5655322516
3√n 254.06155637055
4√n 63.636196714225
5√n 27.730862186684

Divisors of 16398981

1, 9, 1822109, 16398981

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 -16398980
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 16398981 can be divided by 4 positive divisors. The sum of these divisors (counting 16398981) is 1, the average is 0.25.

Base conversion 16398981

Base System Value
2 Binary 111110100011101010000101
3 Ternary 1010212011011200
4 Quaternary 332203222011
5 Quinary 13144231411
6 Senary 1343253113
8 Octal 76435205
10 Decimal 16398981
12 Duodecimal 55aa199
16 Hexadecimal fa3a85
20 Vigesimal 529h91
36 Base36 9rhj9

Cryptographic Hash Functions

md5 39df43be78b4f60958372a96f947b053
sha1 7e6e655515580f386634c225969d05d50b273e3a
sha256 8b2b7b2ecdce796530da9657cda00592b5b14bb651f6f0e584d5eabdef9b5c7a
sha512 e3fa27cbb388a3dca1ae380bcf0796fb729c991cfb4fa82a20b9eb9d17e5851453bb9e8377f8a36a4323c29e7c2cd916e19a540978c67f14939d668a5550d218
ripemd-160 a17089b8acddda064350b2b697b8a18379fdb4e6

16398981 as geometric shapes

Circle

Radius = n
Diameter 32797962
Circumference 103037836.47192
Area 8.4485776129204E+14

Sphere

Radius = n
Volume 1.8473075166841E+22
Surface area 3.3794310451682E+15
Circumference 103037836.47192

Square

Length = n
Perimeter 65595924
Area 268926577838361
Diagonal 23191661.339299

Cube

Length = n
Surface area 1613559467030166
Volume 4.4101218403663E+21
Space diagonal 28403868.284357

Equilateral Triangle

Length = n
Perimeter 49196943
Area 1.1644862408042E+14
Altitude 14201934.142178

Triangular Pyramid

Length = n
Surface area 1.1644862408042E+14
Volume 5.1973784319699E+20
Height 7730553.7797662