Properties of the Number -1377

Three Hundred Seventy-Seven

Basics

Value: -1378 → -1377 → -1376

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 17

Divisors: 1, 3, 9, 17, 27, 51, 81, 153, 459, 1377

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101100001

Octal: -2541

Duodecimal: -969

Hexadecimal: -561

Square: 1896129

Square Root: 37.107950630558946

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

a(n) = (n+1)*(2-n)/2. A80956

Dirichlet inverse of sigma₄ function (A001159). A53826

Expansion of g.f. 1+x+(1+3·x+x²)/(1+x)³. A201163

Inverse Euler transform of the unsigned Moebius function A008966. A320782

Expansion of ∏_k>=1 (1 - x^k)⁹. A10817

Expansion of exp( ∑_n>=1 -σ(9·n)*xⁿ/n ) in powers of x. A283169

Expansion of g.f.: -x*(1 - 2·x + 6·x² - 2·x³ + x⁴)/((1-x)³*(1+x)⁴). A122576

Expansion of (∏_j>=1 (1-(-x)^j) - 1)¹⁸ in powers of x. A47643

Determinant of the n X n Hankel matrix whose entries are s₂ (i+j), 0 <= i, j < n, where s₂ is the sum of the base-2 bits. A56886

Alternating sum of heptagonal numbers. A266085