20121815 (number)

20121815 is an odd 8-digits composite number following 20121814 and preceding 20121816. In scientific notation, it is written as 2.0121815 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors. There are 13737984 positive integers (up to 20121815) that are relatively prime to 20121815.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand eight hundred fifteen

Notation

Scientific notation 2.0121815 × 10^7
Engineering notation 2.0121815 × 10^6

Prime Factorization of 20121815

Prime Factorization 5 × 7 × 257 × 2237

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121815
Product of the distinct prime numbers

The prime factorization of 20121815 is 5 × 7 × 257 × 2237. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 90, 33, 319, 347, 8918, 9688, 45173, 24093, 398683, 334471, 3437723, 1611022, 4847729, 45353599, 46872962, 286502352, 4467666262, 4874078382

Basic calculations (n = 20121815)

Multiplication

n×y
n×2 40243630
n×3 60365445
n×4 80487260
n×5 100609075

Division

n÷y
n÷2 10060907.5
n÷3 6707271.6666667
n÷3 5030453.75
n÷5 4024363

Exponentiation

ny
n2 404887438894225
n3 8.1470701412534E+21
n4 1.6393383817432E+29
n5 3.2986463639837E+36

Nth Root

y√n
2√n 4485.734610964
3√n 271.99174120685
4√n 66.975626991944
5√n 28.889061295278

Divisors of 20121815

1, 5, 7, 35, 257, 1285, 1799, 2237, 8995, 11185, 15659, 78295, 574909, 2874545, 4024363, 20121815

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 -20121814
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 20121815 can be divided by 16 positive divisors. The sum of these divisors (counting 20121815) is 1, the average is 0.0625.

Base conversion 20121815

Base System Value
2 Binary 1001100110000100011010111
3 Ternary 1101212021221102
4 Quaternary 1030300203113
5 Quinary 20122344230
6 Senary 1555140315
8 Octal 114604327
10 Decimal 20121815
12 Duodecimal 68a469b
16 Hexadecimal 13308d7
20 Vigesimal 65f4af
36 Base36 bza3b

Cryptographic Hash Functions

md5 fb49310d67c03b6d8cd9d37fc08a1759
sha1 b394313dd4ae26f6d91801838ff8e4b4828e8cda
sha256 fe150cce64c0b9231f6dde1d1d2758056826d5b257d9a7163cc4af182c56a064
sha512 35c335d4265bc80f9cbdf47a2b5954165f2c2ac27032e5d00edb7f5f18f9344be3c27e557f6e14262676f7848b4168d8ed4a34a3fd90d571e5c3d0d867930d92
ripemd-160 ba07fe33cd7f61b166c2fff41b62eacd29268af1

20121815 as geometric shapes

Circle

Radius = n
Diameter 40243630
Circumference 126429092.36179
Area 1.2719914035609E+15

Sphere

Radius = n
Volume 3.412636760539E+22
Surface area 5.0879656142435E+15
Circumference 126429092.36179

Square

Length = n
Perimeter 80487260
Area 404887438894225
Diagonal 28456543.672562

Cube

Length = n
Surface area 2429324633365350
Volume 8.1470701412534E+21
Space diagonal 34852005.920502

Equilateral Triangle

Length = n
Perimeter 60365445
Area 1.7532140387781E+14
Altitude 17426002.960251

Triangular Pyramid

Length = n
Surface area 1.7532140387781E+14
Volume 9.6014142394712E+20
Height 9485514.5575208