30891921 (number)

30891921 is an odd 8-digits composite number following 30891920 and preceding 30891922. In scientific notation, it is written as 3.0891921 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 19426176 positive integers (up to 30891921) that are relatively prime to 30891921.

Interesting facts

Basic properties

Name

Name thirty million eight hundred ninety-one thousand nine hundred twenty-one

Notation

Scientific notation 3.0891921 × 10^7
Engineering notation 3.0891921 × 10^6

Prime Factorization of 30891921

Prime Factorization 3 × 23 × 73 × 6133

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 30891921
Product of the distinct prime numbers

The prime factorization of 30891921 is 3 × 23 × 73 × 6133. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 71, 77, 553, 174, 3122, 5420, 82701, 89143, 968960, 119384, 4615261, 3017054, 11360424, 42379156, 817823369, 591893683, 1298783875, 769086697

Basic calculations (n = 30891921)

Multiplication

n×y
n×2 61783842
n×3 92675763
n×4 123567684
n×5 154459605

Division

n÷y
n÷2 15445960.5
n÷3 10297307
n÷3 7722980.25
n÷5 6178384.2

Exponentiation

ny
n2 954310783070241
n3 2.9480493320054E+22
n4 9.1070907068414E+29
n5 2.8133552665558E+37

Nth Root

y√n
2√n 5558.0501077266
3√n 313.77256780679
4√n 74.55233133663
5√n 31.475235129953

Divisors of 30891921

1, 3, 23, 69, 73, 219, 1679, 5037, 6133, 18399, 141059, 423177, 447709, 1343127, 10297307, 30891921

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -30891920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 30891921 can be divided by 16 positive divisors. The sum of these divisors (counting 30891921) is 1, the average is 0.0625.

Base conversion 30891921

Base System Value
2 Binary 1110101110101111110010001
3 Ternary 2011010110202020
4 Quaternary 1311311332101
5 Quinary 30402020141
6 Senary 3022042053
8 Octal 165657621
10 Decimal 30891921
12 Duodecimal a419329
16 Hexadecimal 1d75f91
20 Vigesimal 9d19g1
36 Base36 ie4cx

Cryptographic Hash Functions

md5 c5de2d8bde32815594cf3da071b54b68
sha1 8278f2021342d775a50fd826d90ecc4e0047f3e2
sha256 01e05b5f32bd3ba837006c09b733796aee9eb02ef2849a52aa837f31c748f0fd
sha512 a3c35e634a69c9526bc0af85fee289ca5ed598fe95b646f4ae91e61b4b8fd1b65de720f6a0519f92504332826cf61feec8441876cbe7060825bc1216aa32e508
ripemd-160 1f2d67fab901404c943ce9266178e60611de1bed

30891921 as geometric shapes

Circle

Radius = n
Diameter 61783842
Circumference 194099664.13775
Area 2.998055745335E+15

Sphere

Radius = n
Volume 1.2348760165131E+23
Surface area 1.199222298134E+16
Circumference 194099664.13775

Square

Length = n
Perimeter 123567684
Area 954310783070241
Diagonal 43687773.645958

Cube

Length = n
Surface area 5725864698421446
Volume 2.9480493320054E+22
Space diagonal 53506376.715404

Equilateral Triangle

Length = n
Perimeter 92675763
Area 4.1322869062212E+14
Altitude 26753188.357702

Triangular Pyramid

Length = n
Surface area 4.1322869062212E+14
Volume 3.4743094565558E+21
Height 14562591.215319