12561665 (number)

12561665 is an odd 8-digits composite number following 12561664 and preceding 12561666. In scientific notation, it is written as 1.2561665 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 9725040 positive integers (up to 12561665) that are relatively prime to 12561665.

Interesting facts

Basic properties

Name

Name twelve million five hundred sixty-one thousand six hundred sixty-five

Notation

Scientific notation 1.2561665 × 10^7
Engineering notation 1.2561665 × 10^6

Prime Factorization of 12561665

Prime Factorization 5 × 31 × 81043

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12561665
Product of the distinct prime numbers

The prime factorization of 12561665 is 5 × 31 × 81043. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 1, 76, 32, 508, 378, 552, 8267, 50521, 73296, 701697, 841964, 5900534, 3059447, 43976101, 44620064, 9756046, 144118246, 6047419077, 4050544290

Basic calculations (n = 12561665)

Multiplication

n×y
n×2 25123330
n×3 37684995
n×4 50246660
n×5 62808325

Division

n÷y
n÷2 6280832.5
n÷3 4187221.6666667
n÷3 3140416.25
n÷5 2512333

Exponentiation

ny
n2 157795427572225
n3 1.9821732996941E+21
n4 2.4899396962701E+28
n5 3.1277788334747E+35

Nth Root

y√n
2√n 3544.2439250142
3√n 232.46044727409
4√n 59.533552934578
5√n 26.29114143249

Divisors of 12561665

1, 5, 31, 155, 81043, 405215, 2512333, 12561665

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12561664
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12561665 can be divided by 8 positive divisors. The sum of these divisors (counting 12561665) is 1, the average is 0.125.

Base conversion 12561665

Base System Value
2 Binary 101111111010110100000001
3 Ternary 212122012100212
4 Quaternary 233322310001
5 Quinary 11203433130
6 Senary 1125123505
8 Octal 57726401
10 Decimal 12561665
12 Duodecimal 4259595
16 Hexadecimal bfad01
20 Vigesimal 3ia435
36 Base36 7h8n5

Cryptographic Hash Functions

md5 a432c1df87b344bb926f9921bc377912
sha1 ab4e36f335379d651101bc816b0494a9ba675f81
sha256 a0de8b00db889aed22c176f4c0c7a0dfa4a7f7cce7da0f8ee3b68ca2d1df01ea
sha512 44fe145932f9bb3a19dca5fc436190f47619423f2f394a30cc9d0fb12742a5513032e1a7b4c6406965707f8ee0f8155e13457fc6035ef7153f6383b5870fe72e
ripemd-160 d6a660425cd9b835e4e9a773370bb10039838b15

12561665 as geometric shapes

Circle

Radius = n
Diameter 25123330
Circumference 78927268.961712
Area 4.9572895603096E+14

Sphere

Radius = n
Volume 8.3029081019476E+21
Surface area 1.9829158241238E+15
Circumference 78927268.961712

Square

Length = n
Perimeter 50246660
Area 157795427572225
Diagonal 17764877.008987

Cube

Length = n
Surface area 946772565433350
Volume 1.9821732996941E+21
Space diagonal 21757442.00766

Equilateral Triangle

Length = n
Perimeter 37684995
Area 68327424439287
Altitude 10878721.00383

Triangular Pyramid

Length = n
Surface area 68327424439287
Volume 2.3360136361676E+20
Height 5921625.6696625