Properties of the Number 1022

One Thousand Twenty-Two

Basics

Value: 1021 → 1022 → 1023

Parity: even

Prime: No

Previous Prime: 1021

Next Prime: 1031

Digit Sum: 5

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 73

Divisors: 1, 2, 7, 14, 73, 146, 511, 1022

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111111110

Octal: 1776

Duodecimal: 712

Hexadecimal: 3fe

Square: 1044484

Square Root: 31.96873472629156

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: Yes

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers in base 3. A7089

a(n) = 2ⁿ - 2. A918

Triangle of numbers T(n,k) = k!*Stirling2(n,k) read by rows (n >= 1, 1 <= k <= n). A19538

a(2·n) = 3·2ⁿ - 2; a(2·n+1) = 2ⁿ⁺² - 2. A27383

Number of unimodular 2 X 2 matrices having all terms in {0,1,...,n}. A210000

Numbers of the form 2ⁱ - 2^j with i >= j. A23758

Increasing sequence generated by these rules: a(1)=1, and if·is in a then 3x-2 and 4x-2 are in a. A191113

Permutation of nonnegative integers: a(1) = 0, a(2) = 1, a(2n) = 2·a(n), a(2n+1) = 1 + 2·a(A064989(2n+1)). A243071

a(n) = n² - 2. A8865

Number of integer partitions of n that are empty, (1), or have at least two parts and these parts are pairwise coprime. A327516