15661021 (number)

15661021 is an odd 8-digits composite number following 15661020 and preceding 15661022. In scientific notation, it is written as 1.5661021 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 15472252 positive integers (up to 15661021) that are relatively prime to 15661021.

Interesting facts

Basic properties

Name

Name fifteen million six hundred sixty-one thousand twenty-one

Notation

Scientific notation 1.5661021 × 10^7
Engineering notation 1.5661021 × 10^6

Prime Factorization of 15661021

Prime Factorization 83 × 188687

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 15661021
Product of the distinct prime numbers

The prime factorization of 15661021 is 83 × 188687. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 3, 78, 52, 776, 280, 1226, 5718, 43969, 73512, 68831, 774301, 6431524, 1835078, 43585885, 6665766, 430656491, 553397902, 4559322844, 3306841493

Basic calculations (n = 15661021)

Multiplication

n×y
n×2 31322042
n×3 46983063
n×4 62644084
n×5 78305105

Division

n÷y
n÷2 7830510.5
n÷3 5220340.3333333
n÷3 3915255.25
n÷5 3132204.2

Exponentiation

ny
n2 245267578762441
n3 3.8411407016177E+21
n4 6.015618519199E+28
n5 9.4210727957165E+35

Nth Root

y√n
2√n 3957.4007883963
3√n 250.1919645607
4√n 62.907875408381
5√n 27.47666472172

Divisors of 15661021

1, 83, 188687, 15661021

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15661020
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15661021 can be divided by 4 positive divisors. The sum of these divisors (counting 15661021) is 1, the average is 0.25.

Base conversion 15661021

Base System Value
2 Binary 111011101111011111011101
3 Ternary 1002110122212211
4 Quaternary 323233133131
5 Quinary 13002123041
6 Senary 1315400421
8 Octal 73573735
10 Decimal 15661021
12 Duodecimal 52b3111
16 Hexadecimal eef7dd
20 Vigesimal 4hhcb1
36 Base36 9bo4d

Cryptographic Hash Functions

md5 1dce50db764671ee33a127ed4f820716
sha1 58bdf7cf636d00e834006b84b298ac1e4c17e977
sha256 4e75a5efd8c1c2b4aecd2a2a35f5617e64e70ce73231ab93db3eb604abc97157
sha512 79f68d85207a31d0309452ac8914950554ff7682c4e5eca4304d4b78fefa59dcc5ad86bf4e0fa55c22f964906304d4ed975b9cb8cc0cf47ffef336e25df906fe
ripemd-160 c73050445556afa1c0e9517c4c3ed0b58a6baff0

15661021 as geometric shapes

Circle

Radius = n
Diameter 31322042
Circumference 98401097.042631
Area 7.7053082360384E+14

Sphere

Radius = n
Volume 1.6089732546143E+22
Surface area 3.0821232944154E+15
Circumference 98401097.042631

Square

Length = n
Perimeter 62644084
Area 245267578762441
Diagonal 22148028.29881

Cube

Length = n
Surface area 1471605472574646
Volume 3.8411407016177E+21
Space diagonal 27125684.070403

Equilateral Triangle

Length = n
Perimeter 46983063
Area 1.0620397696649E+14
Altitude 13562842.035202

Triangular Pyramid

Length = n
Surface area 1.0620397696649E+14
Volume 4.5268277293426E+20
Height 7382676.0996033