Properties of the Number -38180

Thirty-Eight Thousand One Hundred Eighty

Basics

Value: -38181 → -38180 → -38179

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 23 × 83

Divisors: 1, 2, 4, 5, 10, 20, 23, 46, 83, 92

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001010100100100

Octal: -112444

Duodecimal: -1A118

Hexadecimal: -9524

Square: 1457712400

Square Root: 195.39703170723962

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 k such that k and k+1 have the same sum of unitary divisors (A034448). A64125

Numbers k such that bsigma(k) = bsigma(k+1), where bsigma(k) is the sum of the bi-unitary divisors of k (A188999). A293183

Numbers k such that isigma(k) = isigma(k+1), where isigma(k) is the sum of the infinitary divisors of k (A049417). A306985

Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1. A228126

Number of multiplicity free permutations in S_n, i.e., permutations whose Stanley symmetric function is multiplicity free. A224287

Numbers k such that iphi(k) = iphi(k+1), where iphi is the infinitary totient function (A064380). A301866

Numbers k such that A008475(k)+1 = A008475(k+1). A333801

Numbers k such that A181894(k)+1 = A181894(k+1). A333802

Numbers k such that A113184(k) = A113184(k+1). A348585

Numbers k such that k and k+1 have the same average of unitary divisors. A349222