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

31397987 (number)

31397987 is an odd 8-digits composite number following 31397986 and preceding 31397988. In scientific notation, it is written as 3.1397987 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 31019616 positive integers (up to 31397987) that are relatively prime to 31397987.

Interesting facts

31397987 has 4 divisors, whose sum is 31776360
The reverse of 31397987 is 78979313
Previous prime number is 83

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	thirty-one million three hundred ninety-seven thousand nine hundred eighty-seven

Notation

Scientific notation	3.1397987 × 10^7
Engineering notation	3.1397987 × 10^6

Prime Factorization of 31397987

Prime Factorization 83 × 378289

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	31397987	Product of the distinct prime numbers

The prime factorization of 31397987 is 83 × 378289. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 9, 9, 30, 53, 634, 2314, 6964, 45559, 62950, 220543, 510244, 6241967, 3954687, 18306113, 43065045, 944207597, 426263749, 2234875720, 4467366675

Basic calculations (n = 31397987)

Multiplication

n×y

n×2	62795974
n×3	94193961
n×4	125591948
n×5	156989935

Division

n÷y

n÷2	15698993.5
n÷3	10465995.666667
n÷3	7849496.75
n÷5	6279597.4

Exponentiation

n^y

n²	985833587652169
n³	3.0953190169266E+22
n⁴	9.7186786254315E+29
n⁵	3.0514694513848E+37

Nth Root

^y√n

²√n	5603.3906699426
³√n	315.47668484356
⁴√n	74.855799173762
⁵√n	31.577690300566

Divisors of 31397987

1, 83, 378289, 31397987

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	-31397986	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 31397987 can be divided by 4 positive divisors. The sum of these divisors (counting 31397987) is 1, the average is 0.25.

Base conversion 31397987

Base	System	Value
2	Binary	1110111110001100001100011
3	Ternary	2012002011221102
4	Quaternary	1313301201203
5	Quinary	31014213422
6	Senary	3040545015
8	Octal	167614143
10	Decimal	31397987
12	Duodecimal	a62216b
16	Hexadecimal	1df1863
20	Vigesimal	9g4ej7
36	Base36	ioyub

Cryptographic Hash Functions

md5	2f0cc39a9641144cfb1efb1c6ce84dfd
sha1	3069414864a56b8cd1619bd9eb7c3491459f2426
sha256	1ceaef4bd11976dccdc918b292f6266d8ff671cf34c3f39a53d2f2d14aa9525c
sha512	4b8f07a20aafaee57ed76e55606276725b87a54dcb01f34b6e4efba777def8fac9fe759a9f4641853b7951ee32c1ce9cf091b719b6d35749867ca94dfa602da1
ripemd-160	1b54dc31cae03118df6d3fcd9752efcaa1191602

31397987 as geometric shapes

Circle

Radius = n

Diameter	62795974
Circumference	197279370.59342
Area	3.0970875566301E+15

Sphere

Radius = n

Volume	1.2965641978791E+23
Surface area	1.238835022652E+16
Circumference	197279370.59342

Square

Length = n

Perimeter	125591948
Area	985833587652169
Diagonal	44403459.046614

Cube

Length = n

Surface area	5915001525913014
Volume	3.0953190169266E+22
Space diagonal	54382908.739387

Equilateral Triangle

Length = n

Perimeter	94193961
Area	4.2687846540537E+14
Altitude	27191454.369694

Triangular Pyramid

Length = n

Surface area	4.2687846540537E+14
Volume	3.6478684446741E+21
Height	14801153.015538