Properties of the Number -1490

Four Hundred Ninety

Basics

Value: -1491 → -1490 → -1489

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 149

Divisors: 1, 2, 5, 10, 149, 298, 745, 1490

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10111010010

Octal: -2722

Duodecimal: -A42

Hexadecimal: -5d2

Square: 2220100

Square Root: 38.600518131237564

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

Generalized Catalan numbers C(-7; n). A64329

a(n) = -3·a(n-1) + 5·a(n-2), n > 1; a(0)=1, a(1)=-5. A152185

G.f.: ∏_n>=1 (1 - 2·xⁿ)³. A322216

Tetranacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4) for n >= 4 with a(0) = a(1) = a(2) = 0 and a(3) = 1. A78

Numbers m such that the Bernoulli number B_m has denominator 66. A51230

Number of compositions of n in which the largest part is equal to the number of parts. A98124

Numbers m such that the factorizations of m..m+2 have the same number of primes (including multiplicities). A45939

Number of integer partitions of n for which every restriction to a subinterval has a different sum. A325768

Number of finite sets of nonempty non-singleton subsets of {1..n} contradicting a strict version of the axiom of choice. A367769

Numbers k whose largest divisor <= sqrt(k) equals 10. A162530