28997907 (number)

28997907 is an odd 8-digits composite number following 28997906 and preceding 28997908. In scientific notation, it is written as 2.8997907 × 10^7. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 19331936 positive integers (up to 28997907) that are relatively prime to 28997907.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-seven thousand nine hundred seven

Notation

Scientific notation 2.8997907 × 10^7
Engineering notation 2.8997907 × 10^6

Prime Factorization of 28997907

Prime Factorization 3 × 9665969

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28997907
Product of the distinct prime numbers

The prime factorization of 28997907 is 3 × 9665969. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28997907)

Multiplication

n×y
n×2 57995814
n×3 86993721
n×4 115991628
n×5 144989535

Division

n÷y
n÷2 14498953.5
n÷3 9665969
n÷3 7249476.75
n÷5 5799581.4

Exponentiation

ny
n2 840878610380649
n3 2.4383719742107E+22
n4 7.0707683739569E+29
n5 2.0503748372654E+37

Nth Root

y√n
2√n 5384.9704734567
3√n 307.22429117339
4√n 73.382358053259
5√n 31.079450419924

Divisors of 28997907

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 -28997906
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 28997907 can be divided by 4 positive divisors. The sum of these divisors (counting 28997907) is 1, the average is 0.25.

Base conversion 28997907

Base System Value
2 Binary 1101110100111100100010011
3 Ternary 2000120020122120
4 Quaternary 1232213210103
5 Quinary 24410413112
6 Senary 2513305323
8 Octal 156474423
10 Decimal 28997907
12 Duodecimal 9865243
16 Hexadecimal 1ba7913
20 Vigesimal 914ef7
36 Base36 h9ixf

Cryptographic Hash Functions

md5 268f52113c65fcb6b958472989815490
sha1 ca530b41ff5446e7d00b5f4c2ee0a1bbee3b63dd
sha256 4638e0e1253d33c0fc108923fd95a654e0f549aa67f4d8662951782054960541
sha512 b11df4ad63274cbd9b4c5c1dec0ea3fc92259395d796787b38a83ce1f87dd5569b5bb92bd4b8c861f2e27df797e04e0377c83e770a669a7bf2e435b5a72ee1e9
ripemd-160 169534bc56d4254c7e6cd041aaaea15f14424638

28997907 as geometric shapes

Circle

Radius = n
Diameter 57995814
Circumference 182199223.20136
Area 2.6416980649326E+15

Sphere

Radius = n
Volume 1.02138286412E+23
Surface area 1.0566792259731E+16
Circumference 182199223.20136

Square

Length = n
Perimeter 115991628
Area 840878610380649
Diagonal 41009233.359834

Cube

Length = n
Surface area 5045271662283894
Volume 2.4383719742107E+22
Space diagonal 50225848.237157

Equilateral Triangle

Length = n
Perimeter 86993721
Area 3.641111190443E+14
Altitude 25112924.118579

Triangular Pyramid

Length = n
Surface area 3.641111190443E+14
Volume 2.8736489300327E+21
Height 13669744.453278