21012912 (number)

21012912 is an even 8-digits composite number following 21012911 and preceding 21012913. In scientific notation, it is written as 2.1012912 × 10^7. The sum of its digits is 18. It has a total of 9 prime factors and 80 positive divisors. There are 6931008 positive integers (up to 21012912) that are relatively prime to 21012912.

Interesting facts

Basic properties

Name

Name twenty-one million twelve thousand nine hundred twelve

Notation

Scientific notation 2.1012912 × 10^7
Engineering notation 2.1012912 × 10^6

Prime Factorization of 21012912

Prime Factorization 2 × 2 × 2 × 2 × 3 × 3 × 3 × 127 × 383

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 291846
Product of the distinct prime numbers

The prime factorization of 21012912 is 2 × 2 × 2 × 2 × 3 × 3 × 3 × 127 × 383. Since it has a total of 9 prime factors.

Most popular turbo-numbers

9, 4, 27, 59, 694, 365, 9706, 4436, 33074, 73934, 839395, 727055, 7551849, 9608508, 65416353, 70630928, 388891970, 329312383, 2653150944, 4649756088

Basic calculations (n = 21012912)

Multiplication

n×y
n×2 42025824
n×3 63038736
n×4 84051648
n×5 105064560

Division

n÷y
n÷2 10506456
n÷3 7004304
n÷3 5253228
n÷5 4202582.4

Exponentiation

ny
n2 441542470719744
n3 9.2780930814966E+21
n4 1.949597534493E+29
n5 4.0966721427718E+36

Nth Root

y√n
2√n 4583.9842931668
3√n 275.94895086096
4√n 67.705127524928
5√n 29.140516715341

Divisors of 21012912

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 127, 144, 216, 254, 381, 383, 432, 508, 762, 766, 1016, 1143, 1149, 1524, 1532, 2032, 2286, 2298, 3048, 3064, 3429, 3447, 4572, 4596, 6096, 6128, 6858, 6894, 9144, 9192, 10341, 13716, 13788, 18288, 18384, 20682, 27432, 27576, 41364, 48641, 54864, 55152, 82728, 97282, 145923, 165456, 194564, 291846, 389128, 437769, 583692, 778256, 875538, 1167384, 1313307, 1751076, 2334768, 2626614, 3502152, 5253228, 7004304, 10506456, 21012912

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 -21012911
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 21012912 can be divided by 80 positive divisors. The sum of these divisors (counting 21012912) is 1, the average is 0.0125.

Base conversion 21012912

Base System Value
2 Binary 1010000001010000110110000
3 Ternary 1110112120022000
4 Quaternary 1100022012300
5 Quinary 20334403122
6 Senary 2030214000
8 Octal 120120660
10 Decimal 21012912
12 Duodecimal 7054300
16 Hexadecimal 140a1b0
20 Vigesimal 6b6c5c
36 Base36 cido0

Cryptographic Hash Functions

md5 dfc3a3e2e79fe4bc7d3945dcddc75dbc
sha1 bda60f8338d3b245b34aa251611fb38c06b402a4
sha256 d08588d79d8fe11252dfc508bc4a9fd73063ee5fc62844b38d4f4988f4d4c4a5
sha512 8d18fe2ef4b56f47207d88ef2f01510252a6f68ac3fb8e946f8c44cfa2c7cb675383b659f4d5f139cb1b8f73a541e1d3355be17499540fbd323fe4823bc569fd
ripemd-160 eb6e0fbbc7b6b73addeae8e0102cddc045ed8496

21012912 as geometric shapes

Circle

Radius = n
Diameter 42025824
Circumference 132028019.93946
Area 1.387146582261E+15

Sphere

Radius = n
Volume 3.8863985418869E+22
Surface area 5.5485863290441E+15
Circumference 132028019.93946

Square

Length = n
Perimeter 84051648
Area 441542470719744
Diagonal 29716745.135352

Cube

Length = n
Surface area 2649254824318464
Volume 9.2780930814966E+21
Space diagonal 36395431.198974

Equilateral Triangle

Length = n
Perimeter 63038736
Area 1.9119349824652E+14
Altitude 18197715.599487

Triangular Pyramid

Length = n
Surface area 1.9119349824652E+14
Volume 1.0934337557344E+21
Height 9905581.7117841