Properties of the Number -1816

Eight Hundred Sixteen

Basics

Value: -1817 → -1816 → -1815

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 227

Divisors: 1, 2, 4, 8, 227, 454, 908, 1816

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11100011000

Octal: -3430

Duodecimal: -1074

Hexadecimal: -718

Square: 3297856

Square Root: 42.61455150532503

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

Expansion of e.g.f. sin(x)*sin(sin(x)) (even powers only). A9546

Inverse of a triangle of pyramidal numbers. A110814

Triangle of numerators of dual coefficients of Faulhaber. A201453

Riordan array (1/((1-2x)(1-x)²), -x/(1-x)²). A135552

A characteristic triangle for the Euler totient function (A000010). A110032

Numerators of inverse of triangle A082985(n). A230069

Expansion of ∏_{m >= 1} (1 + x^m); number of partitions of n into distinct parts; number of partitions of n into odd parts. A9

Number of strict knapsack partitions of n. A275972

Number of partitions of n with some part repeated. A47967

Number of integer partitions of n of which every permutation has a consecutive monotone triple, i.e., a triple (..., x, y, z, ...) such that either x <= y <= z or x >= y >= z. A344654