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Properties of the Number -162409

One Hundred Sixty-Two Thousand Four Hundred Nine

Basics

Value: -162410 → -162409 → -162408

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 13 2 × 31 2

Divisors: 1, 13, 31, 169, 403, 961, 5239, 12493, 162409

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -100111101001101001

Octal: -475151

Duodecimal: -79BA1

Hexadecimal: -27a69

Square: 26376683281

Square Root: 403

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

a(n) = (11·n + 7)2. A17474
Number A(n,k) of domicule tilings of a k X n grid; square array A(n,k), n>=0, k>=0, read by antidiagonals. A239264
Squares which are the product of a non-palindrome and its reversal, where leading zeros are not allowed. A76750
Discriminants with exactly 2 associated cyclic cubic fields. A343002
Discriminants with at least 2 associated cyclic cubic fields. A343024
Apply (1+Shift)2 to Bell numbers. A11969
Squares of odd heptagonal numbers. A14773
Square numbers not of form m + sum of digits of m. A171671
Powers of 3 in base 60, concatenating the decimal values of the sexagesimal digits. A254334
Numbers n=2·k-1 where ∑j=1..k (-1)j+1 * d(2·j-1) achieves a new record, with d(n) = number of divisors of n (A000005). A318737