128151921 (number)

128151921 is an odd 9-digits composite number following 128151920 and preceding 128151922. In scientific notation, it is written as 1.28151921 × 10^8. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 85434612 positive integers (up to 128151921) that are relatively prime to 128151921.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million one hundred fifty-one thousand nine hundred twenty-one

Notation

Scientific notation 1.28151921 × 10^8
Engineering notation 1.28151921 × 10^6

Prime Factorization of 128151921

Prime Factorization 3 × 42717307

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128151921
Product of the distinct prime numbers

The prime factorization of 128151921 is 3 × 42717307. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 70, 49, 985, 368, 3103, 1672, 95106, 53746, 286967, 754790, 3445179, 4960307, 95215696, 34917801, 439310130, 124816830, 8302140865, 2499438137

Basic calculations (n = 128151921)

Multiplication

n×y
n×2 256303842
n×3 384455763
n×4 512607684
n×5 640759605

Division

n÷y
n÷2 64075960.5
n÷3 42717307
n÷3 32037980.25
n÷5 25630384.2

Exponentiation

ny
n2 16422914855990241
n3 2.1046280872146E+24
n4 2.697121323671E+32
n5 3.4564127879851E+40

Nth Root

y√n
2√n 11320.420531058
3√n 504.16772494674
4√n 106.39746487139
5√n 41.835505806364

Divisors of 128151921

1, 3, 42717307, 128151921

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 -128151920
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 128151921 can be divided by 4 positive divisors. The sum of these divisors (counting 128151921) is 1, the average is 0.25.

Base conversion 128151921

Base System Value
2 Binary 111101000110111000101110001
3 Ternary 22221010210101110
4 Quaternary 13220313011301
5 Quinary 230301330141
6 Senary 20414423533
8 Octal 750670561
10 Decimal 128151921
12 Duodecimal 36b01ba9
16 Hexadecimal 7a37171
20 Vigesimal 200ijg1
36 Base36 24aqnl

Cryptographic Hash Functions

md5 fbd6337734bfcf25d279399512fe4303
sha1 998b31c648008d1bae02ab032961745caaf6e6c7
sha256 4e96ecd1035d8caddb76ccc91c1231cf913fe93effa7f598246fc6303f30b12e
sha512 b41483a2d0ab0af5ffc71137e5ce633a669f989b3534235d7916d6e08d61abc0f536972cda45e38bab7c5639c3665f7f1f6f205a4da0c18e368ac2323348fa45
ripemd-160 9b9828218d81aacfdeebfd5e9f9c22bd7506c7af

128151921 as geometric shapes

Circle

Radius = n
Diameter 256303842
Circumference 805202267.11404
Area 5.159410866211E+16

Sphere

Radius = n
Volume 8.8158455164428E+24
Surface area 2.0637643464844E+17
Circumference 805202267.11404

Square

Length = n
Perimeter 512607684
Area 16422914855990241
Diagonal 181234184.72237

Cube

Length = n
Surface area 98537489135941446
Volume 2.1046280872146E+24
Space diagonal 221965638.25955

Equilateral Triangle

Length = n
Perimeter 384455763
Area 7.1113307347382E+15
Altitude 110982819.12978

Triangular Pyramid

Length = n
Surface area 7.1113307347382E+15
Volume 2.4803279872418E+23
Height 60411394.907455