Properties of the Number -177906

One Hundred Seventy-Seven Thousand Nine Hundred Six

Basics

Value: -177907 → -177906 → -177905

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 149 × 199

Divisors: 1, 2, 3, 6, 149, 199, 298, 398, 447, 597

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101011011011110010

Octal: -533362

Duodecimal: -86B56

Hexadecimal: -2b6f2

Square: 31650544836

Square Root: 421.7890467994635

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

Triangular numbers n such that σ(n) is a square number. A256151

Triangular numbers containing 2k digits in which the sum of the first k digits = that of the rest. A68898

Initial seeds·which will enter a cycle of length 4 under the iteration of x -> A063919(x), the sum of proper unitary divisors. A98187

Triangular numbers which are sums of 6 consecutive primes. A173423

Triangular numbers k such that ψ(k) is a square, where ψ(k) is the Dedekind ψ function (A001615). A292064

a(n) = A000217(A000217(n)+1). A267707