16561391 (number)

16561391 is an odd 8-digits composite number following 16561390 and preceding 16561392. In scientific notation, it is written as 1.6561391 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 12904320 positive integers (up to 16561391) that are relatively prime to 16561391.

Interesting facts

Basic properties

Name

Name sixteen million five hundred sixty-one thousand three hundred ninety-one

Notation

Scientific notation 1.6561391 × 10^7
Engineering notation 1.6561391 × 10^6

Prime Factorization of 16561391

Prime Factorization 7 × 11 × 11 × 19553

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1505581
Product of the distinct prime numbers

The prime factorization of 16561391 is 7 × 11 × 11 × 19553. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 15, 75, 873, 198, 5694, 3010, 57571, 65839, 590083, 44974, 3444379, 9440472, 65073729, 52986287, 759950369, 826184558, 6332660035, 3929650570

Basic calculations (n = 16561391)

Multiplication

n×y
n×2 33122782
n×3 49684173
n×4 66245564
n×5 82806955

Division

n÷y
n÷2 8280695.5
n÷3 5520463.6666667
n÷3 4140347.75
n÷5 3312278.2

Exponentiation

ny
n2 274279671854881
n3 4.5424528889404E+21
n4 7.5229338392821E+28
n5 1.2459024877948E+36

Nth Root

y√n
2√n 4069.5688960872
3√n 254.89751616727
4√n 63.79317280154
5√n 27.785573306706

Divisors of 16561391

1, 7, 11, 77, 121, 847, 19553, 136871, 215083, 1505581, 2365913, 16561391

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -16561390
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 16561391 can be divided by 12 positive divisors. The sum of these divisors (counting 16561391) is 1, the average is 0.083333333333333.

Base conversion 16561391

Base System Value
2 Binary 111111001011010011101111
3 Ternary 1011011101221212
4 Quaternary 333023103233
5 Quinary 13214431031
6 Senary 1350545035
8 Octal 77132357
10 Decimal 16561391
12 Duodecimal 566817b
16 Hexadecimal fcb4ef
20 Vigesimal 53a39b
36 Base36 9uyun

Cryptographic Hash Functions

md5 11784c189e0d49854ba011f9714cd4f0
sha1 dbb4bb91206cdfb155c121619c90bdcdfe0cb22b
sha256 60e87c9a8459084b4ea1cb3684b402f61b648b5d3663fc8b40f75ea9faa91681
sha512 28d075cc7549ee21eff74c84ccf1529dee3c21a0e3756141ed8f952b9fd230105ccbc826c63901040fe7b72d1e3950a4691b1a80d559e7d6f7fff3a6b01c8f30
ripemd-160 255e75d9a5f70b7b7021f11697cf836d97f58e19

16561391 as geometric shapes

Circle

Radius = n
Diameter 33122782
Circumference 104058288.59766
Area 8.6167500212831E+14

Sphere

Radius = n
Volume 1.9027382166897E+22
Surface area 3.4467000085133E+15
Circumference 104058288.59766

Square

Length = n
Perimeter 66245564
Area 274279671854881
Diagonal 23421343.763964

Cube

Length = n
Surface area 1645678031129286
Volume 4.5424528889404E+21
Space diagonal 28685170.656014

Equilateral Triangle

Length = n
Perimeter 49684173
Area 1.1876658178399E+14
Altitude 14342585.328007

Triangular Pyramid

Length = n
Surface area 1.1876658178399E+14
Volume 5.3533320683169E+20
Height 7807114.5879879