31820985 (number)

31820985 is an odd 8-digits composite number following 31820984 and preceding 31820986. In scientific notation, it is written as 3.1820985 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 14385600 positive integers (up to 31820985) that are relatively prime to 31820985.

Interesting facts

Basic properties

Name

Name thirty-one million eight hundred twenty thousand nine hundred eighty-five

Notation

Scientific notation 3.1820985 × 10^7
Engineering notation 3.1820985 × 10^6

Prime Factorization of 31820985

Prime Factorization 15 × 63 × 151 × 223

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 31820985
Product of the distinct prime numbers

The prime factorization of 31820985 is 15 × 63 × 151 × 223. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 78, 90, 311, 787, 7998, 3040, 75966, 31914, 624859, 874145, 6361852, 1594461, 67259647, 57668191, 832124263, 861353313, 5986056039, 6925877329

Basic calculations (n = 31820985)

Multiplication

n×y
n×2 63641970
n×3 95462955
n×4 127283940
n×5 159104925

Division

n÷y
n÷2 15910492.5
n÷3 10606995
n÷3 7955246.25
n÷5 6364197

Exponentiation

ny
n2 1012575086370225
n3 3.2221136634761E+22
n4 1.0253083055377E+30
n5 3.262632021089E+37

Nth Root

y√n
2√n 5641.0092182162
3√n 316.88708507531
4√n 75.106652290035
5√n 31.662319265455

Divisors of 31820985

1, 15, 63, 151, 223, 945, 2265, 3345, 9513, 14049, 33673, 142695, 210735, 505095, 2121399, 31820985

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31820984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31820985 can be divided by 16 positive divisors. The sum of these divisors (counting 31820985) is 1, the average is 0.0625.

Base conversion 31820985

Base System Value
2 Binary 1111001011000110010111001
3 Ternary 2012212200012000
4 Quaternary 1321120302321
5 Quinary 31121232420
6 Senary 3054011213
8 Octal 171306271
10 Decimal 31820985
12 Duodecimal a7a6b09
16 Hexadecimal 1e58cb9
20 Vigesimal 9ihc95
36 Base36 iy189

Cryptographic Hash Functions

md5 62376b880507aa62e58fc7493f6ae19c
sha1 f80254a626816dcc92b8c9207ccfb04960f1f2f7
sha256 299a1f501451d0c271dc47cf10e22e6f6618a938fd780da12efb9a321fea1f02
sha512 bf15ca07b8a2e06a433395bb8bf2890b07da5b18c986e123dda581a0b7ddba8742bbfcbbb442456d7f8e62da2808d057ad4a5820174118632a3a53d1c4ff5466
ripemd-160 c6a9607273735db9ec3386a5533ce2eefbfc8f2d

31820985 as geometric shapes

Circle

Radius = n
Diameter 63641970
Circumference 199937145.41198
Area 3.1810984525487E+15

Sphere

Radius = n
Volume 1.3496758152277E+23
Surface area 1.2724393810195E+16
Circumference 199937145.41198

Square

Length = n
Perimeter 127283940
Area 1012575086370225
Diagonal 45001668.555071

Cube

Length = n
Surface area 6075450518221350
Volume 3.2221136634761E+22
Space diagonal 55115562.766887

Equilateral Triangle

Length = n
Perimeter 95462955
Area 4.3845787401792E+14
Altitude 27557781.383444

Triangular Pyramid

Length = n
Surface area 4.3845787401792E+14
Volume 3.7972973686629E+21
Height 15000556.185024