21369985 (number)

21369985 is an odd 8-digits composite number following 21369984 and preceding 21369986. In scientific notation, it is written as 2.1369985 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 13305600 positive integers (up to 21369985) that are relatively prime to 21369985.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred sixty-nine thousand nine hundred eighty-five

Notation

Scientific notation 2.1369985 × 10^7
Engineering notation 2.1369985 × 10^6

Prime Factorization of 21369985

Prime Factorization 35 × 67 × 13 × 701

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21369985
Product of the distinct prime numbers

The prime factorization of 21369985 is 35 × 67 × 13 × 701. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 57, 13, 564, 292, 5948, 7069, 86373, 73035, 92889, 937251, 1408858, 5764222, 54879277, 85096128, 970704847, 518987626, 2993270589, 643141755

Basic calculations (n = 21369985)

Multiplication

n×y
n×2 42739970
n×3 64109955
n×4 85479940
n×5 106849925

Division

n÷y
n÷2 10684992.5
n÷3 7123328.3333333
n÷3 5342496.25
n÷5 4273997

Exponentiation

ny
n2 456676258900225
n3 9.7591648025539E+21
n4 2.0855320544311E+29
n5 4.4567788720211E+36

Nth Root

y√n
2√n 4622.7681101262
3√n 277.5032491571
4√n 67.990941382851
5√n 29.238887444831

Divisors of 21369985

1, 13, 35, 67, 455, 701, 871, 2345, 9113, 24535, 30485, 46967, 318955, 610571, 1643845, 21369985

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 -21369984
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 21369985 can be divided by 16 positive divisors. The sum of these divisors (counting 21369985) is 1, the average is 0.0625.

Base conversion 21369985

Base System Value
2 Binary 1010001100001010010000001
3 Ternary 1111012201002221
4 Quaternary 1101201102001
5 Quinary 20432314420
6 Senary 2042011041
8 Octal 121412201
10 Decimal 21369985
12 Duodecimal 71a6a81
16 Hexadecimal 1461481
20 Vigesimal 6db4j5
36 Base36 cq16p

Cryptographic Hash Functions

md5 8ce7be514754e00095201f0f3ea3c267
sha1 2793c55d37bb0c65c88a278c22e9f778aa695528
sha256 10a32407ce3d340a2847123d888ac66d05be583bbd1315d335dcc01c8e89e248
sha512 b14a1c7d63aea740dff21fd081b6b35d3db9028cd8ead0db238543bfe758bef886818c8cabae47c97404e3f9756b84ad2fd43bee90c53def921cf2253443d27f
ripemd-160 4c33ccd5b788974f91a2eb3ea1b41f6356b5c30a

21369985 as geometric shapes

Circle

Radius = n
Diameter 42739970
Circumference 134271575.76665
Area 1.4346907800298E+15

Sphere

Radius = n
Volume 4.0879093931834E+22
Surface area 5.7387631201193E+15
Circumference 134271575.76665

Square

Length = n
Perimeter 85479940
Area 456676258900225
Diagonal 30221722.61471

Cube

Length = n
Surface area 2740057553401350
Volume 9.7591648025539E+21
Space diagonal 37013899.776985

Equilateral Triangle

Length = n
Perimeter 64109955
Area 1.9774662075642E+14
Altitude 18506949.888492

Triangular Pyramid

Length = n
Surface area 1.9774662075642E+14
Volume 1.1501286017672E+21
Height 10073907.538237