Properties of the Number -22987

Twenty-Two Thousand Nine Hundred Eighty-Seven

Basics

Value: -22988 → -22987 → -22986

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 127 × 181

Divisors: 1, 127, 181, 22987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100111001011

Octal: -54713

Duodecimal: -11377

Hexadecimal: -59cb

Square: 528402169

Square Root: 151.61464309228182

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

Numbers n such that φ(n) = φ(n+12) and n is not divisible by 2. A217141

a(n) = A273059(4n+2). A275918

Decimal encoding of the prime factorization of n is a multiple of n. A67598

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 33 ones. A31801

The prime factors of n are also prime factors of the decimal encoding (A067599) of the prime factorization of n. A67671

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (-1, 1, -1), (1, -1, -1), (1, 0, 1)}. A148544

Numbers such that the sum of the reverse of their aliquot parts is equal to the reverse of the sum of their aliquot parts. A278948