Properties of the Number -7087

Eighty-Seven

Basics

Value: -7088 → -7087 → -7086

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 19 × 373

Divisors: 1, 19, 373, 7087

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101110101111

Octal: -15657

Duodecimal: -4127

Hexadecimal: -1baf

Square: 50225569

Square Root: 84.1843215806839

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

Number of integer compositions of n into parts that are alternately unequal and equal. A357644

Reflected tetranacci numbers A073817. A74058

a(n) = first term that can be reduced in n steps via repeated interpretation of a(n) as a base b+1 number where b is the largest digit of a(n), such that b is always 8 so that each interpretation is base 9. Terms already fully reduced (i.e., single digits) are excluded. A141842

Fibonacci sequence beginning 1, 11. A22101

a(n) = a(n-1) - a(n-2) + a(n-3) + a(n-4), a(0)=4, a(1)=1, a(2)=-1, a(3)=1. A73937

Positive numbers n such that 8·n²-2·n-1 divides Fibonacci(n). A159259

Lucky numbers with size of gaps equal to 14 (lower terms). A31896

Odd composite numbers which in base 2 contain their largest proper factor as a substring of digits. A63131

Sum over all multiplicative partitions μ of n whose sum is also n (with factors >= 1), of the encoding as ∏_{j in μ} prime(j). A377853

From expansion of falling factorials. A5492