Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

31128981 (number)

31128981 is an odd 8-digits composite number following 31128980 and preceding 31128982. In scientific notation, it is written as 3.1128981 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 19156272 positive integers (up to 31128981) that are relatively prime to 31128981.

Interesting facts

31128981 has 8 divisors, whose sum is 44698080
The reverse of 31128981 is 18982113
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

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

Notation

Scientific notation	3.1128981 × 10^7
Engineering notation	3.1128981 × 10^6

Prime Factorization of 31128981

Prime Factorization 3 × 13 × 798179

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	31128981	Product of the distinct prime numbers

The prime factorization of 31128981 is 3 × 13 × 798179. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 5, 54, 1, 59, 506, 671, 6581, 29706, 6714, 100295, 986339, 2599377, 5566050, 49438907, 65265207, 195218569, 666092668, 1159107866, 250535940

Basic calculations (n = 31128981)

Multiplication

n×y

n×2	62257962
n×3	93386943
n×4	124515924
n×5	155644905

Division

n÷y

n÷2	15564490.5
n÷3	10376327
n÷3	7782245.25
n÷5	6225796.2

Exponentiation

n^y

n²	969013458098361
n³	3.0164401525888E+22
n⁴	9.3898708197574E+29
n⁵	2.9229711034068E+37

Nth Root

^y√n

²√n	5579.3351754488
³√n	314.57313811479
⁴√n	74.694947455961
⁵√n	31.523394781121

Divisors of 31128981

1, 3, 13, 39, 798179, 2394537, 10376327, 31128981

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-31128980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31128981 can be divided by 8 positive divisors. The sum of these divisors (counting 31128981) is 1, the average is 0.125.

Base conversion 31128981

Base	System	Value
2	Binary	1110110101111110110010101
3	Ternary	2011120111221020
4	Quaternary	1312233312111
5	Quinary	30432111411
6	Senary	3031111353
8	Octal	166576625
10	Decimal	31128981
12	Duodecimal	a512559
16	Hexadecimal	1dafd95
20	Vigesimal	9eb291
36	Base36	ij79x

Cryptographic Hash Functions

md5	ec125b6069b66e39300617db080bff91
sha1	80f8272adbae8b1d8ab144afa132828529ff3482
sha256	6c7ad8ed4c56890f0d625701be5ee43bff7b098d59002847c3315c6112dc333a
sha512	60258991283a6bf69b5056abf5b369b95587c8784d76de942c4e50c1f4be92b5f4b44512dc00ca71eb18c63513dd6660082bae4eeb2728a89472482f810a0d98
ripemd-160	5ce1a6aaf0c36dcb43e0112913a8e9f332b9ba1c

31128981 as geometric shapes

Circle

Radius = n

Diameter	62257962
Circumference	195589156.04667
Area	3.0442455611915E+15

Sphere

Radius = n

Volume	1.2635234964488E+23
Surface area	1.2176982244766E+16
Circumference	195589156.04667

Square

Length = n

Perimeter	124515924
Area	969013458098361
Diagonal	44023027.113054

Cube

Length = n

Surface area	5814080748590166
Volume	3.0164401525888E+22
Space diagonal	53916976.679846

Equilateral Triangle

Length = n

Perimeter	93386943
Area	4.1959513566109E+14
Altitude	26958488.339923

Triangular Pyramid

Length = n

Surface area	4.1959513566109E+14
Volume	3.5549088115649E+21
Height	14674342.371018