81609428 (number)

81609428 is an even 8-digits composite number following 81609427 and preceding 81609429. In scientific notation, it is written as 8.1609428 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 39030552 positive integers (up to 81609428) that are relatively prime to 81609428.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred nine thousand four hundred twenty-eight

Notation

Scientific notation 8.1609428 × 10^7
Engineering notation 8.1609428 × 10^6

Prime Factorization of 81609428

Prime Factorization 2 × 2 × 23 × 887059

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40804714
Product of the distinct prime numbers

The prime factorization of 81609428 is 2 × 2 × 23 × 887059. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 2, 31, 419, 381, 4359, 6935, 43165, 38174, 167297, 284823, 6322845, 17361, 42973015, 35438553, 983694719, 109433209, 9578473700, 3993821061

Basic calculations (n = 81609428)

Multiplication

n×y
n×2 163218856
n×3 244828284
n×4 326437712
n×5 408047140

Division

n÷y
n÷2 40804714
n÷3 27203142.666667
n÷3 20402357
n÷5 16321885.6

Exponentiation

ny
n2 6660098738487184
n3 5.4352684847146E+23
n4 4.4356915206399E+31
n5 3.6199424778387E+39

Nth Root

y√n
2√n 9033.7936660077
3√n 433.75728108876
4√n 95.046271184132
5√n 38.225050406578

Divisors of 81609428

1, 2, 4, 23, 46, 92, 887059, 1774118, 3548236, 20402357, 40804714, 81609428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81609427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81609428 can be divided by 12 positive divisors. The sum of these divisors (counting 81609428) is 1, the average is 0.083333333333333.

Base conversion 81609428

Base System Value
2 Binary 100110111010100001011010100
3 Ternary 12200120012002102
4 Quaternary 10313110023110
5 Quinary 131343000203
6 Senary 12033101232
8 Octal 467241324
10 Decimal 81609428
12 Duodecimal 233b7818
16 Hexadecimal 4dd42d4
20 Vigesimal 15a13b8
36 Base36 1cl68k

Cryptographic Hash Functions

md5 d1ae4f712aa4a7b66dc39fa6ccaae6e3
sha1 2a32eab4f05afd5046c4cdbaa98c73069d8fed72
sha256 2683ddd041aad8a7bb2e5411aa94f14f5953c74dd17797b0ee575a641cf2bce7
sha512 5e7e8f9262416006f4d923a3c616f83d62b4ab6761ce11ebd885020534ee5f0321b0b5f2c21b4fdb5a88513933250d2966e13f672cafc9a8028326d3f6d55efe
ripemd-160 12cba31e0de69ebdfd3e4fa4a1d533640695ac23

81609428 as geometric shapes

Circle

Radius = n
Diameter 163218856
Circumference 512767158.93693
Area 2.0923317269014E+16

Sphere

Radius = n
Volume 2.2767199389157E+24
Surface area 8.3693269076056E+16
Circumference 512767158.93693

Square

Length = n
Perimeter 326437712
Area 6660098738487184
Diagonal 115413159.89511

Cube

Length = n
Surface area 39960592430923104
Volume 5.4352684847146E+23
Space diagonal 141351675.67263

Equilateral Triangle

Length = n
Perimeter 244828284
Area 2.8839073496213E+15
Altitude 70675837.836317

Triangular Pyramid

Length = n
Surface area 2.8839073496213E+15
Volume 6.4055253385187E+22
Height 38471053.29837