21969985 (number)

21969985 is an odd 8-digits composite number following 21969984 and preceding 21969986. In scientific notation, it is written as 2.1969985 × 10^7. The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors. There are 16571520 positive integers (up to 21969985) that are relatively prime to 21969985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1969985 × 10^7
Engineering notation 2.1969985 × 10^6

Prime Factorization of 21969985

Prime Factorization 5 × 19 × 823 × 281

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21969985
Product of the distinct prime numbers

The prime factorization of 21969985 is 5 × 19 × 823 × 281. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 8, 73, 4, 252, 15, 5457, 6113, 14774, 85373, 649491, 540547, 8200691, 416435, 12941305, 4957146, 515371963, 879464286, 7817868982, 2919508807

Basic calculations (n = 21969985)

Multiplication

n×y
n×2 43939970
n×3 65909955
n×4 87879940
n×5 109849925

Division

n÷y
n÷2 10984992.5
n÷3 7323328.3333333
n÷3 5492496.25
n÷5 4393997

Exponentiation

ny
n2 482680240900225
n3 1.0604477652374E+22
n4 2.329802149555E+29
n5 5.1185718278691E+36

Nth Root

y√n
2√n 4687.2150580062
3√n 280.07644596346
4√n 68.46323873442
5√n 29.401260639569

Divisors of 21969985

1, 5, 19, 95, 281, 823, 1405, 4115, 5339, 15637, 26695, 78185, 231263, 1156315, 4393997, 21969985

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 -21969984
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 21969985 can be divided by 16 positive divisors. The sum of these divisors (counting 21969985) is 1, the average is 0.0625.

Base conversion 21969985

Base System Value
2 Binary 1010011110011110001000001
3 Ternary 1112100012011011
4 Quaternary 1103303301001
5 Quinary 21111014420
6 Senary 2102520521
8 Octal 123636101
10 Decimal 21969985
12 Duodecimal 7436141
16 Hexadecimal 14f3c41
20 Vigesimal 6h64j5
36 Base36 d2w5d

Cryptographic Hash Functions

md5 429d7607806dc4bb684724c1974103f4
sha1 9f14e0fb7874a2ccc4b7122557ba775fb7ee11c6
sha256 0cf0b429fc67bcd681253508142d0713a201e1709dde874953638278a21683f0
sha512 693bf8dda6a993ad589faad7badb8ee5138d0e3105dc04d0b077eab669e997cbce413123f1d1d2d278936ed06133816d62d42e7ed1a86134cc041b0496d339c7
ripemd-160 6f0f592712aa5fe9c50d9d2c52711c8413289e67

21969985 as geometric shapes

Circle

Radius = n
Diameter 43939970
Circumference 138041486.95096
Area 1.5163846988451E+15

Sphere

Radius = n
Volume 4.4419932117142E+22
Surface area 6.0655387953804E+15
Circumference 138041486.95096

Square

Length = n
Perimeter 87879940
Area 482680240900225
Diagonal 31070250.752133

Cube

Length = n
Surface area 2896081445401350
Volume 1.0604477652374E+22
Space diagonal 38053130.261526

Equilateral Triangle

Length = n
Perimeter 65909955
Area 2.0900667526219E+14
Altitude 19026565.130763

Triangular Pyramid

Length = n
Surface area 2.0900667526219E+14
Volume 1.2497496764892E+21
Height 10356750.250711