28991511 (number)

28991511 is an odd 8-digits composite number following 28991510 and preceding 28991512. In scientific notation, it is written as 2.8991511 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 17231616 positive integers (up to 28991511) that are relatively prime to 28991511.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-one thousand five hundred eleven

Notation

Scientific notation 2.8991511 × 10^7
Engineering notation 2.8991511 × 10^6

Prime Factorization of 28991511

Prime Factorization 9 × 19 × 17 × 9973

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28991511
Product of the distinct prime numbers

The prime factorization of 28991511 is 9 × 19 × 17 × 9973. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 80, 13, 591, 225, 6235, 3227, 60522, 7668, 420313, 468420, 2400176, 4340674, 13151926, 60138804, 794900933, 546607952, 9124448094, 4307611925

Basic calculations (n = 28991511)

Multiplication

n×y
n×2 57983022
n×3 86974533
n×4 115966044
n×5 144957555

Division

n÷y
n÷2 14495755.5
n÷3 9663837
n÷3 7247877.75
n÷5 5798302.2

Exponentiation

ny
n2 840507710063121
n3 2.436758852188E+22
n4 7.0645321067555E+29
n5 2.0481146028286E+37

Nth Root

y√n
2√n 5384.3765655831
3√n 307.20170159987
4√n 73.378311275084
5√n 31.078079274721

Divisors of 28991511

1, 9, 17, 19, 153, 171, 323, 2907, 9973, 89757, 169541, 189487, 1525869, 1705383, 3221279, 28991511

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 -28991510
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 28991511 can be divided by 16 positive divisors. The sum of these divisors (counting 28991511) is 1, the average is 0.0625.

Base conversion 28991511

Base System Value
2 Binary 1101110100110000000010111
3 Ternary 2000112220212200
4 Quaternary 1232212000113
5 Quinary 24410212021
6 Senary 2513215543
8 Octal 156460027
10 Decimal 28991511
12 Duodecimal 98615b3
16 Hexadecimal 1ba6017
20 Vigesimal 913ifb
36 Base36 h9dzr

Cryptographic Hash Functions

md5 669d47c164650e09161a71164f1a9f43
sha1 13d73aae251f6d2c57f16d7b106821a3e92303bc
sha256 b2680d24e267ca2f3cd80b878c2958eff48f7ae4e393f3199837864f57f9bd4e
sha512 7ed00ba08073349bb20a1d4e34f1e276d67e22c5a409c582b05ddfa467ff43f78bc537a98128b95860c32957028b7db718799c9f146c3071f1529f1375e9bad9
ripemd-160 f89629acd94f0bc9f85e7328a814765d8600e39c

28991511 as geometric shapes

Circle

Radius = n
Diameter 57983022
Circumference 182159035.94814
Area 2.6405328472199E+15

Sphere

Radius = n
Volume 1.0207071611472E+23
Surface area 1.056213138888E+16
Circumference 182159035.94814

Square

Length = n
Perimeter 115966044
Area 840507710063121
Diagonal 41000188.049889

Cube

Length = n
Surface area 5043046260378726
Volume 2.436758852188E+22
Space diagonal 50214770.040192

Equilateral Triangle

Length = n
Perimeter 86974533
Area 3.6395051449567E+14
Altitude 25107385.020096

Triangular Pyramid

Length = n
Surface area 3.6395051449567E+14
Volume 2.8717478474974E+21
Height 13666729.349963