28156720 (number)

28156720 is an even 8-digits composite number following 28156719 and preceding 28156721. In scientific notation, it is written as 2.8156720 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 20 positive divisors. There are 11262656 positive integers (up to 28156720) that are relatively prime to 28156720.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8156720 × 10^7
Engineering notation 2.8156720 × 10^6

Prime Factorization of 28156720

Prime Factorization 2 × 2 × 2 × 2 × 5 × 351959

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3519590
Product of the distinct prime numbers

The prime factorization of 28156720 is 2 × 2 × 2 × 2 × 5 × 351959. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 7, 14, 77, 267, 29, 6716, 7016, 79937, 20553, 521692, 539535, 4408197, 7837469, 67096457, 54792009, 774536553, 144402650, 7186796805, 9087764624

Basic calculations (n = 28156720)

Multiplication

n×y
n×2 56313440
n×3 84470160
n×4 112626880
n×5 140783600

Division

n÷y
n÷2 14078360
n÷3 9385573.3333333
n÷3 7039180
n÷5 5631344

Exponentiation

ny
n2 792800881158400
n3 2.232267242653E+22
n4 6.2853323716554E+29
n5 1.7697434369564E+37

Nth Root

y√n
2√n 5306.2906064406
3√n 304.22438420144
4√n 72.844290143021
5√n 30.897007082449

Divisors of 28156720

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351959, 703918, 1407836, 1759795, 2815672, 3519590, 5631344, 7039180, 14078360, 28156720

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28156719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28156720 can be divided by 20 positive divisors. The sum of these divisors (counting 28156720) is 1, the average is 0.05.

Base conversion 28156720

Base System Value
2 Binary 1101011011010001100110000
3 Ternary 1221222111202111
4 Quaternary 1223122030300
5 Quinary 24202003340
6 Senary 2443255104
8 Octal 153321460
10 Decimal 28156720
12 Duodecimal 951a494
16 Hexadecimal 1ada330
20 Vigesimal 8fjbg0
36 Base36 grhv4

Cryptographic Hash Functions

md5 d02c48560a80cab63e5e18059dfd71ee
sha1 ba27c0edde5c983e0e4f7f27e176b0594a919d55
sha256 79f3579d823d4183fa8be2def4fe4e223aa8d0ad51e67bf0598a291b4fb601ff
sha512 8e6944961f2f048ad9ee478b4818c38d66dbf89282577ddcb90e2a2e05f99d5b03fc570dc14e9d78aaab2e551a4fb99f50cc5a8493f94fd3d26210afe12f597b
ripemd-160 df33f11366176b9b6ed7346504dda5aa54b80036

28156720 as geometric shapes

Circle

Radius = n
Diameter 56313440
Circumference 176913889.40237
Area 2.4906574240067E+15

Sphere

Radius = n
Volume 9.3504991604906E+22
Surface area 9.962629696027E+15
Circumference 176913889.40237

Square

Length = n
Perimeter 112626880
Area 792800881158400
Diagonal 39819615.295942

Cube

Length = n
Surface area 4756805286950400
Volume 2.232267242653E+22
Space diagonal 48768869.614491

Equilateral Triangle

Length = n
Perimeter 84470160
Area 3.4329285161293E+14
Altitude 24384434.807245

Triangular Pyramid

Length = n
Surface area 3.4329285161293E+14
Volume 2.6307521745009E+21
Height 13273205.098647