166157721 (number)

166157721 is an odd 9-digits composite number following 166157720 and preceding 166157722. In scientific notation, it is written as 1.66157721 × 10^8. The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors. There are 110771808 positive integers (up to 166157721) that are relatively prime to 166157721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.66157721 × 10^8
Engineering notation 1.66157721 × 10^6

Prime Factorization of 166157721

Prime Factorization 9 × 18461969

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 166157721
Product of the distinct prime numbers

The prime factorization of 166157721 is 9 × 18461969. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 166157721)

Multiplication

n×y
n×2 332315442
n×3 498473163
n×4 664630884
n×5 830788605

Division

n÷y
n÷2 83078860.5
n÷3 55385907
n÷3 41539430.25
n÷5 33231544.2

Exponentiation

ny
n2 27608388247913841
n3 4.5873468717565E+24
n4 7.6222310164755E+32
n5 1.2664925346331E+41

Nth Root

y√n
2√n 12890.218035394
3√n 549.76046980216
4√n 113.53509605137
5√n 44.066048221735

Divisors of 166157721

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 -166157720
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 166157721 can be divided by 4 positive divisors. The sum of these divisors (counting 166157721) is 1, the average is 0.25.

Base conversion 166157721

Base System Value
2 Binary 1001111001110101110110011001
3 Ternary 102120122200112200
4 Quaternary 21321311312121
5 Quinary 320014021341
6 Senary 24253200413
8 Octal 1171656631
10 Decimal 166157721
12 Duodecimal 47790109
16 Hexadecimal 9e75d99
20 Vigesimal 2bi9e61
36 Base36 2qxc49

Cryptographic Hash Functions

md5 21bdfd0b595e126893e8b58ef3c42064
sha1 a02307e19121317c9dc5c111e38e6fa0429171c4
sha256 4492862ef917dc39c404b16c2de55675c2d993ed953309c84b5beb16763deab3
sha512 2b9016eac1bb0f858cbd045c4d6786e454abf6bd5f3bd34c5796bca8a6e89d13c1c2c2ff58d31f5b6300e4d788e49b8b784cc49f1a389cce4602981a8d90a53c
ripemd-160 61d5b3e1c605f5bc0fc0dca196c9370267d938f8

166157721 as geometric shapes

Circle

Radius = n
Diameter 332315442
Circumference 1043999751.2616
Area 8.6734309697101E+16

Sphere

Radius = n
Volume 1.9215433642371E+25
Surface area 3.469372387884E+17
Circumference 1043999751.2616

Square

Length = n
Perimeter 664630884
Area 27608388247913841
Diagonal 234982502.5312

Cube

Length = n
Surface area 165650329487483046
Volume 4.5873468717565E+24
Space diagonal 287793614.84185

Equilateral Triangle

Length = n
Perimeter 498473163
Area 1.1954782790119E+16
Altitude 143896807.42093

Triangular Pyramid

Length = n
Surface area 1.1954782790119E+16
Volume 5.4062401344566E+23
Height 78327500.843735