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Properties of the Number -5240

Two Hundred Forty

Basics

Value: -5241 → -5240 → -5239

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 3 × 5 × 131

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 131, 262

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1010001111000

Octal: -12170

Duodecimal: -3048

Hexadecimal: -1478

Square: 27457600

Square Root: 72.38784428341543

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Sequence is {a(4,n)}, where a(m,n) is defined at sequence A111518. A111522
O.g.f. A(x) satisfies: A(x) = 1 + Integral (x·A(x)8)' / (x·A(x)5)' dx. A302704
Lower triangular matrix T = Pascal lower triangular matrix divided on the left by its entry-square. A39910
Number of partitions of n such that smaller parts do not occur more frequently than greater parts. A171979
Sum of the smallest parts of the partitions of 4n into 4 parts. A238702
T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 nXk array. A220579
T(n,k)=Number of nXk 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4. A240192
Number of fully chiral integer partitions of n. A330228
Number of solutions to c(1)t(1) + ... + c(n)t(n) = 0, where c(i) = +-1 for i>1, c(1) = t(1) = 1, t(i) = triangular numbers (A000217). A58498
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 2 and no antidiagonal sum 2 and no row sum 0 and no column sum 0. A255792