81444270 (number)

81444270 is an even 8-digits composite number following 81444269 and preceding 81444271. In scientific notation, it is written as 8.1444270 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors. There are 21561120 positive integers (up to 81444270) that are relatively prime to 81444270.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-four thousand two hundred seventy

Notation

Scientific notation 8.1444270 × 10^7
Engineering notation 8.1444270 × 10^6

Prime Factorization of 81444270

Prime Factorization 2 × 3 × 5 × 139 × 19531

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81444270
Product of the distinct prime numbers

The prime factorization of 81444270 is 2 × 3 × 5 × 139 × 19531. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 2, 87, 58, 532, 487, 5298, 9219, 38791, 45333, 715663, 899484, 6030984, 9254725, 71738587, 8002457, 245285397, 893981876, 101802005, 4106299953

Basic calculations (n = 81444270)

Multiplication

n×y
n×2 162888540
n×3 244332810
n×4 325777080
n×5 407221350

Division

n÷y
n÷2 40722135
n÷3 27148090
n÷3 20361067.5
n÷5 16288854

Exponentiation

ny
n2 6633169115832900
n3 5.4023361642556E+23
n4 4.3998932519239E+31
n5 3.5834609398087E+39

Nth Root

y√n
2√n 9024.6479155699
3√n 433.46447641496
4√n 94.998146905979
5√n 38.209566191614

Divisors of 81444270

1, 2, 3, 5, 6, 10, 15, 30, 139, 278, 417, 695, 834, 1390, 2085, 4170, 19531, 39062, 58593, 97655, 117186, 195310, 292965, 585930, 2714809, 5429618, 8144427, 13574045, 16288854, 27148090, 40722135, 81444270

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 -81444269
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 81444270 can be divided by 32 positive divisors. The sum of these divisors (counting 81444270) is 1, the average is 0.03125.

Base conversion 81444270

Base System Value
2 Binary 100110110101011110110101110
3 Ternary 12200020210112110
4 Quaternary 10312223312232
5 Quinary 131322204040
6 Senary 12025344450
8 Octal 466536656
10 Decimal 81444270
12 Duodecimal 23338126
16 Hexadecimal 4dabdae
20 Vigesimal 1590ada
36 Base36 1chmsu

Cryptographic Hash Functions

md5 defdafc6aac0f8d471afabb1e0d86a6b
sha1 ddf85d30e6aef3f6bc44306945abfa5c75f6f39c
sha256 322b621caff7720249f16607a41ca88acbf4e28e21cf9b0229d1dbb00af869b4
sha512 d56e4c403a677187fec9fccde24c33771acee796936f14e9cf8d3eeccb5cc8053eba8bb76453325856413e81118d0d712c8a924aa26feae21b81dece28f4a5be
ripemd-160 669f3c020da39f384529b3d4653043dab91a9de0

81444270 as geometric shapes

Circle

Radius = n
Diameter 162888540
Circumference 511729440.61797
Area 2.0838715364319E+16

Sphere

Radius = n
Volume 2.2629252807797E+24
Surface area 8.3354861457277E+16
Circumference 511729440.61797

Square

Length = n
Perimeter 325777080
Area 6633169115832900
Diagonal 115179591.21158

Cube

Length = n
Surface area 39799014694997400
Volume 5.4023361642556E+23
Space diagonal 141065613.62536

Equilateral Triangle

Length = n
Perimeter 244332810
Area 2.8722464809548E+15
Altitude 70532806.812679

Triangular Pyramid

Length = n
Surface area 2.8722464809548E+15
Volume 6.3667142266574E+22
Height 38393197.070525