12721661 (number)

12721661 is an odd 8-digits composite number following 12721660 and preceding 12721662. In scientific notation, it is written as 1.2721661 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 11897280 positive integers (up to 12721661) that are relatively prime to 12721661.

Interesting facts

Basic properties

Name

Name twelve million seven hundred twenty-one thousand six hundred sixty-one

Notation

Scientific notation 1.2721661 × 10^7
Engineering notation 1.2721661 × 10^6

Prime Factorization of 12721661

Prime Factorization 17 × 163 × 4591

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12721661
Product of the distinct prime numbers

The prime factorization of 12721661 is 17 × 163 × 4591. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12721661)

Multiplication

n×y
n×2 25443322
n×3 38164983
n×4 50886644
n×5 63608305

Division

n÷y
n÷2 6360830.5
n÷3 4240553.6666667
n÷3 3180415.25
n÷5 2544332.2

Exponentiation

ny
n2 161840658598921
n3 2.0588819947122E+21
n4 2.6192398775733E+28
n5 3.3321081800168E+35

Nth Root

y√n
2√n 3566.743753061
3√n 233.4432242013
4√n 59.722221601855
5√n 26.35777605286

Divisors of 12721661

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 -12721660
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 12721661 can be divided by 8 positive divisors. The sum of these divisors (counting 12721661) is 1, the average is 0.125.

Base conversion 12721661

Base System Value
2 Binary 110000100001110111111101
3 Ternary 212221022211122
4 Quaternary 300201313331
5 Quinary 11224043121
6 Senary 1132400325
8 Octal 60416775
10 Decimal 12721661
12 Duodecimal 43160a5
16 Hexadecimal c21dfd
20 Vigesimal 3ja431
36 Base36 7ko3h

Cryptographic Hash Functions

md5 ecaece8e316067b2fea7ead3311549e3
sha1 80428c51f35c15c8c0cc847c5b75d970d16dee59
sha256 7f3d4b277a6d74e075a1d563faf609a0152f7c5bd78d841d334aa947edaed935
sha512 eb4c9f9e9579042408648ea3585a10d26fbb73bed1f1a2e81f0ad8236cd99fcc11052e4c12252c2abc4861d0651b3d156db30f338d2e3ea8edab814aeae4ac5a
ripemd-160 ea16dff7ff97352463db89a0f3f582e562f0a9be

12721661 as geometric shapes

Circle

Radius = n
Diameter 25443322
Circumference 79932553.47812
Area 5.084374241065E+14

Sphere

Radius = n
Volume 8.6242247322616E+21
Surface area 2.033749696426E+15
Circumference 79932553.47812

Square

Length = n
Perimeter 50886644
Area 161840658598921
Diagonal 17991145.522113

Cube

Length = n
Surface area 971043951593526
Volume 2.0588819947122E+21
Space diagonal 22034563.208667

Equilateral Triangle

Length = n
Perimeter 38164983
Area 70079060855935
Altitude 11017281.604334

Triangular Pyramid

Length = n
Surface area 70079060855935
Volume 2.4264157002065E+20
Height 5997048.507371