15561381 (number)

15561381 is an odd 8-digits composite number following 15561380 and preceding 15561382. In scientific notation, it is written as 1.5561381 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 9390720 positive integers (up to 15561381) that are relatively prime to 15561381.

Interesting facts

Basic properties

Name

Name fifteen million five hundred sixty-one thousand three hundred eighty-one

Notation

Scientific notation 1.5561381 × 10^7
Engineering notation 1.5561381 × 10^6

Prime Factorization of 15561381

Prime Factorization 33 × 1753 × 269

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 15561381
Product of the distinct prime numbers

The prime factorization of 15561381 is 33 × 1753 × 269. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 15561381)

Multiplication

n×y
n×2 31122762
n×3 46684143
n×4 62245524
n×5 77806905

Division

n÷y
n÷2 7780690.5
n÷3 5187127
n÷3 3890345.25
n÷5 3112276.2

Exponentiation

ny
n2 242156578627161
n3 3.7682907816737E+21
n4 5.8639808572412E+28
n5 9.1251640296238E+35

Nth Root

y√n
2√n 3944.791629478
3√n 249.66023712059
4√n 62.807576210821
5√n 27.441612485992

Divisors of 15561381

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 -15561380
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 15561381 can be divided by 8 positive divisors. The sum of these divisors (counting 15561381) is 1, the average is 0.125.

Base conversion 15561381

Base System Value
2 Binary 111011010111001010100101
3 Ternary 1002021121012110
4 Quaternary 323113022211
5 Quinary 12440431011
6 Senary 1313311233
8 Octal 73271245
10 Decimal 15561381
12 Duodecimal 5265519
16 Hexadecimal ed72a5
20 Vigesimal 4h5391
36 Base36 99j8l

Cryptographic Hash Functions

md5 1675e6fa6ca96b5d9ea3a31c36f2203d
sha1 94ff86f199496e91e40fa489482eabdc3903ef78
sha256 e7e8b3d7dc263860ca178d40268b4bc920e905d69f389855a52f1c158eb35d3c
sha512 5f4aef31e74b813fdab7bcb3b4d60cdea5cf54569e309582676993e984e09695fb6ee391b8eb2574390eabde575a0dcce122efc8ad5dfde3bf8b12d78f5e7a5a
ripemd-160 7a06b489d7c663019e062b49c956713f9cf46c08

15561381 as geometric shapes

Circle

Radius = n
Diameter 31122762
Circumference 97775040.458624
Area 7.6075732843353E+14

Sphere

Radius = n
Volume 1.5784579515062E+22
Surface area 3.0430293137341E+15
Circumference 97775040.458624

Square

Length = n
Perimeter 62245524
Area 242156578627161
Diagonal 22007116.059455

Cube

Length = n
Surface area 1452939471762966
Volume 3.7682907816737E+21
Space diagonal 26953102.527937

Equilateral Triangle

Length = n
Perimeter 46684143
Area 1.0485687439232E+14
Altitude 13476551.263968

Triangular Pyramid

Length = n
Surface area 1.0485687439232E+14
Volume 4.4409732753404E+20
Height 7335705.3531517