Properties of the Number -1049

Forty-Nine

Basics

Value: -1050 → -1049 → -1048

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 1049

Divisors: 1, 1049

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000011001

Octal: -2031

Duodecimal: -735

Hexadecimal: -419

Square: 1100401

Square Root: 32.38826948140329

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) = [xⁿ] (1/(1 + x/(1 + x²/(1 + x³/(1 + x⁴/(1 + x⁵/(1 + ...)))))))ⁿ, a continued fraction. A291651

a(n) = -n² + 9·n + 53. A126665

G.f.: exp( ∑_n>=1 A002129(n²)*xⁿ/n ), where A002129(n) is the excess of sum of odd divisors of n over sum of even divisors of n. A225925

E.g.f.: exp(x/(1 + x + x²)). A293571

The function A(x) = x+(1/2)*x²-(1/16)*x⁴... = ∑_{k >= 0} x^k*a(k)/A381670(k) satisfies the functional equation: x*(A(x)+1) = A(A(x)). A381669

Numerators of expansion of a function η(x) related to Cremer points. A58969

Triangle, T(n, k) = ∑_j=0..k (-1)^j*(n+k)!/((n-j)!*(k -j)!*j!) + ∑_j=0..n-k (-1)^j*(2·n-k)!/((n-j)!*(n-k-j)!*j!), read by rows. A176093

Expansion of tanh(log(1+sinh(x))). A9772

Lesser of twin primes. A1359

Sophie Germain primes p: 2p+1 is also prime. A5384