21969891 (number)

21969891 is an odd 8-digits composite number following 21969890 and preceding 21969892. In scientific notation, it is written as 2.1969891 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors. There are 14289120 positive integers (up to 21969891) that are relatively prime to 21969891.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred sixty-nine thousand eight hundred ninety-one

Notation

Scientific notation 2.1969891 × 10^7
Engineering notation 2.1969891 × 10^6

Prime Factorization of 21969891

Prime Factorization 3 × 3 × 41 × 59539

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7323297
Product of the distinct prime numbers

The prime factorization of 21969891 is 3 × 3 × 41 × 59539. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 3, 3, 78, 131, 730, 840, 6851, 22129, 98386, 826938, 108578, 2978982, 8459121, 65563186, 19617580, 90630549, 529855486, 975368921, 7825463343

Basic calculations (n = 21969891)

Multiplication

n×y
n×2 43939782
n×3 65909673
n×4 87879564
n×5 109849455

Division

n÷y
n÷2 10984945.5
n÷3 7323297
n÷3 5492472.75
n÷5 4393978.2

Exponentiation

ny
n2 482676110551881
n3 1.0604341537129E+22
n4 2.3297622769749E+29
n5 5.1184623281051E+36

Nth Root

y√n
2√n 4687.2050307193
3√n 280.07604652117
4√n 68.463165503205
5√n 29.401235480488

Divisors of 21969891

1, 3, 9, 41, 123, 369, 59539, 178617, 535851, 2441099, 7323297, 21969891

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21969890
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21969891 can be divided by 12 positive divisors. The sum of these divisors (counting 21969891) is 1, the average is 0.083333333333333.

Base conversion 21969891

Base System Value
2 Binary 1010011110011101111100011
3 Ternary 1112100012000200
4 Quaternary 1103303233203
5 Quinary 21111014031
6 Senary 2102520243
8 Octal 123635743
10 Decimal 21969891
12 Duodecimal 7436083
16 Hexadecimal 14f3be3
20 Vigesimal 6h64eb
36 Base36 d2w2r

Cryptographic Hash Functions

md5 ac5d7b14edee6349db97933a0003a475
sha1 6b4fb90c80b76760e422ace3c3d344e35efdabfe
sha256 d288cc2276f92cc036b816ac4ec94d671a49dbe1c98c6f85cb301d678b5e647a
sha512 2da94eefc58e95081387786a54b948eaf4ea3b653ea6b62cb2bcd94607b1fa27184304bbeddf02569155e27ed8ee1430be67a0259ba40ea2cfef3fee6696ca70
ripemd-160 c4f94b0f8f09683d9a1bfec2431434cc1a1113df

21969891 as geometric shapes

Circle

Radius = n
Diameter 43939782
Circumference 138040896.33154
Area 1.5163717229731E+15

Sphere

Radius = n
Volume 4.4419361958934E+22
Surface area 6.0654868918923E+15
Circumference 138040896.33154

Square

Length = n
Perimeter 87879564
Area 482676110551881
Diagonal 31070117.816059

Cube

Length = n
Surface area 2896056663311286
Volume 1.0604341537129E+22
Space diagonal 38052967.44875

Equilateral Triangle

Length = n
Perimeter 65909673
Area 2.090048867689E+14
Altitude 19026483.724375

Triangular Pyramid

Length = n
Surface area 2.090048867689E+14
Volume 1.2497336351537E+21
Height 10356705.938686