Properties of the Number 946

Nine Hundred Forty-Six

Basics

Value: 945 → 946 → 947

Parity: even

Prime: No

Previous Prime: 941

Next Prime: 947

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 11 × 43

Divisors: 1, 2, 11, 22, 43, 86, 473, 946

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110110010

Octal: 1662

Duodecimal: 66A

Hexadecimal: 3b2

Square: 894916

Square Root: 30.757112998459398

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: a(n) = binomial(n+1,2) = n*(n+1)/2 = 0 + 1 + 2 + ... + n. A217

Hexagonal numbers: a(n) = n*(2·n-1). A384

Hexagonal pyramidal numbers, or greengrocer's numbers. A2412

Expansion of 1/((1-x)⁴*(1+x)). A2623

a(n) = binomial(n,2): number of size-2 subsets of {0,1,...,n} that contain no consecutive integers. A161680

Number of partitions of n in which no part occurs just once. A7690

Centered 9-gonal (also known as nonagonal or enneagonal) numbers. Every third triangular number, starting with a(1)=1. A60544

Write 1,2,... in a clockwise spiral; sequence gives numbers on positive·axis. A33951

Triangular numbers (A000217) with prime indices. A34953

Numbers k such that k¹⁶ + 1 is prime. A6313