Properties of the Number -162261

One Hundred Sixty-Two Thousand Two Hundred Sixty-One

Basics

Value: -162262 → -162261 → -162260

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: Yes

Factorization: 3 ² × 11 ² × 149

Divisors: 1, 3, 9, 11, 33, 99, 121, 149, 363, 447

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -100111100111010101

Octal: -474725

Duodecimal: -79A99

Hexadecimal: -279d5

Square: 26328632121

Square Root: 402.8163353192122

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 ordered rooted trees with n edges such that the rightmost leaf of each subtree is at even level. Equivalently, number of Dyck paths of semilength n with no return descents of odd length. A33297

a(n) = n⁵ + n³ - n². A133072

a(0)=1, a(1)=1, a(n) = 11·a(n/2) for even n, and a(n) = 10·a((n-1)/2) + a((n+1)/2) for odd n >= 3. A116525

Largest palindromic substring in 3ⁿ. A46261

a(0)=1; a(n) = ∑_k=1..n-1 d(k)*a(n-k), where d(m) is m-th bit in binary expansion of n. A260956

Number of 3 X 3 symmetric matrices over Z(n) having determinant 0. A115223

p⁵ + p³ - p². Exponents are the prime numbers in decreasing order and p is the n-th prime. A135181

Numbers k such that k and k² use only the digits 1, 2, 3, 6 and 8. A136980

Palindromic numbers such that the sum of the digits equals the number of divisors. A263720

Number of (n + 1, n + 2)-core partitions with odd parts and corresponding order ideals confined to the two outermost diagonals of P_{n + 1, n + 2}. A299099