21087312 (number)

21087312 is an even 8-digits composite number following 21087311 and preceding 21087313. In scientific notation, it is written as 2.1087312 × 10^7. The sum of its digits is 24. It has a total of 8 prime factors and 80 positive divisors. There are 6754176 positive integers (up to 21087312) that are relatively prime to 21087312.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand three hundred twelve

Notation

Scientific notation 2.1087312 × 10^7
Engineering notation 2.1087312 × 10^6

Prime Factorization of 21087312

Prime Factorization 2 × 2 × 2 × 2 × 3 × 83 × 79 × 67

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2635914
Product of the distinct prime numbers

The prime factorization of 21087312 is 2 × 2 × 2 × 2 × 3 × 83 × 79 × 67. Since it has a total of 8 prime factors.

Most popular turbo-numbers

2, 8, 52, 80, 3, 408, 5430, 2520, 35377, 18870, 204734, 779275, 5298977, 350034, 28443572, 25726810, 58445778, 130884624, 4360696571, 8109609249

Basic calculations (n = 21087312)

Multiplication

n×y
n×2 42174624
n×3 63261936
n×4 84349248
n×5 105436560

Division

n÷y
n÷2 10543656
n÷3 7029104
n÷3 5271828
n÷5 4217462.4

Exponentiation

ny
n2 444674727385344
n3 9.3769947148897E+21
n4 1.9773561317523E+29
n5 4.1697125685374E+36

Nth Root

y√n
2√n 4592.0923335665
3√n 276.27424955873
4√n 67.764978665727
5√n 29.161123001568

Divisors of 21087312

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 67, 79, 83, 134, 158, 166, 201, 237, 249, 268, 316, 332, 402, 474, 498, 536, 632, 664, 804, 948, 996, 1072, 1264, 1328, 1608, 1896, 1992, 3216, 3792, 3984, 5293, 5561, 6557, 10586, 11122, 13114, 15879, 16683, 19671, 21172, 22244, 26228, 31758, 33366, 39342, 42344, 44488, 52456, 63516, 66732, 78684, 84688, 88976, 104912, 127032, 133464, 157368, 254064, 266928, 314736, 439319, 878638, 1317957, 1757276, 2635914, 3514552, 5271828, 7029104, 10543656, 21087312

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087311
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087312 can be divided by 80 positive divisors. The sum of these divisors (counting 21087312) is 1, the average is 0.0125.

Base conversion 21087312

Base System Value
2 Binary 1010000011100010001010000
3 Ternary 1110200100100120
4 Quaternary 1100130101100
5 Quinary 20344243222
6 Senary 2031550240
8 Octal 120342120
10 Decimal 21087312
12 Duodecimal 708b380
16 Hexadecimal 141c450
20 Vigesimal 6bfi5c
36 Base36 cjz2o

Cryptographic Hash Functions

md5 f2bb0f8a745bc8b5f22e847adfaa4374
sha1 068e846d98863e262baaf7cc0da6fd8ecc178a71
sha256 1781c5a82a9a2211ebbeb5e7c8be792c04b9a98ae55536d36462441842b57e89
sha512 cb251b915f7cbf6bbfa995b89cb306360b447bb76eee88d53549941860c64cbe9adb8f1e70bc54b9aae60a6d00abe036d6fa654e9fae23de40c9d2542cf7ad9e
ripemd-160 13a4f32a505699847a37263889cbe2a7c8711c74

21087312 as geometric shapes

Circle

Radius = n
Diameter 42174624
Circumference 132495488.92631
Area 1.3969868567908E+15

Sphere

Radius = n
Volume 3.9278263612064E+22
Surface area 5.5879474271634E+15
Circumference 132495488.92631

Square

Length = n
Perimeter 84349248
Area 444674727385344
Diagonal 29821962.624393

Cube

Length = n
Surface area 2668048364312064
Volume 9.3769947148897E+21
Space diagonal 36524295.779057

Equilateral Triangle

Length = n
Perimeter 63261936
Area 1.9254980516831E+14
Altitude 18262147.889528

Triangular Pyramid

Length = n
Surface area 1.9254980516831E+14
Volume 1.1050894250082E+21
Height 9940654.208131