128215521 (number)

128215521 is an odd 9-digits composite number following 128215520 and preceding 128215522. In scientific notation, it is written as 1.28215521 × 10^8. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 72254592 positive integers (up to 128215521) that are relatively prime to 128215521.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred fifteen thousand five hundred twenty-one

Notation

Scientific notation 1.28215521 × 10^8
Engineering notation 1.28215521 × 10^6

Prime Factorization of 128215521

Prime Factorization 9 × 3 × 7 × 73 × 9293

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 128215521
Product of the distinct prime numbers

The prime factorization of 128215521 is 9 × 3 × 7 × 73 × 9293. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 9, 85, 90, 441, 299, 1751, 6295, 54449, 66439, 697642, 499961, 8105820, 1152295, 74776237, 90021265, 748882517, 633643740, 7343719547, 1502247009

Basic calculations (n = 128215521)

Multiplication

n×y
n×2 256431042
n×3 384646563
n×4 512862084
n×5 641077605

Division

n÷y
n÷2 64107760.5
n÷3 42738507
n÷3 32053880.25
n÷5 25643104.2

Exponentiation

ny
n2 16439219825301441
n3 2.1077631347346E+24
n4 2.7024794846458E+32
n5 3.4649981511568E+40

Nth Root

y√n
2√n 11323.229265541
3√n 504.25111494209
4√n 106.41066330749
5√n 41.839657457172

Divisors of 128215521

1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599, 9293, 13797, 27879, 65051, 83637, 195153, 250911, 585459, 678389, 1756377, 2035167, 4748723, 6105501, 14246169, 18316503, 42738507, 128215521

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128215520
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128215521 can be divided by 32 positive divisors. The sum of these divisors (counting 128215521) is 1, the average is 0.03125.

Base conversion 128215521

Base System Value
2 Binary 111101001000110100111100001
3 Ternary 22221021000122000
4 Quaternary 13221012213201
5 Quinary 230310344041
6 Senary 20420034213
8 Octal 751064741
10 Decimal 128215521
12 Duodecimal 36b32969
16 Hexadecimal 7a469e1
20 Vigesimal 2016ig1
36 Base36 24c3q9

Cryptographic Hash Functions

md5 8a76a4733fe837033e13fb1e70584058
sha1 4f95225d0b45cf2142c5092d86cbe8e71c30f7cb
sha256 15d964faee5eca58a296730f837dd91ea9cbdea1fb568157c2a3277ef488fdb0
sha512 b730004f0e766bec0b7cadd8119ec3021c496ff97eed9ccda767da8c86eeccfee30a2ae34e50e376385bca6890ef8f9351499509b028b4ec933cdac96d0141e2
ripemd-160 b2685d3a6588c3ccf1af647c665012ff7d54d935

128215521 as geometric shapes

Circle

Radius = n
Diameter 256431042
Circumference 805601877.69958
Area 5.1645332233915E+16

Sphere

Radius = n
Volume 8.828977572786E+24
Surface area 2.0658132893566E+17
Circumference 805601877.69958

Square

Length = n
Perimeter 512862084
Area 16439219825301441
Diagonal 181324128.70493

Cube

Length = n
Surface area 98635318951808646
Volume 2.1077631347346E+24
Space diagonal 222075796.69091

Equilateral Triangle

Length = n
Perimeter 384646563
Area 7.1183909935539E+15
Altitude 111037898.34546

Triangular Pyramid

Length = n
Surface area 7.1183909935539E+15
Volume 2.4840226761764E+23
Height 60441376.234977