Properties of the Number 19479

Nineteen Thousand Four Hundred Seventy-Nine

Basics

Value: 19478 → 19479 → 19480

Parity: odd

Prime: No

Previous Prime: 19477

Next Prime: 19483

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 43 × 151

Divisors: 1, 3, 43, 129, 151, 453, 6493, 19479

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100110000010111

Octal: 46027

Duodecimal: B333

Hexadecimal: 4c17

Square: 379431441

Square Root: 139.56718812099066

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

Index where prime(n) appears as a term in A379248. A379290

Number of partitions of n such that the number of parts is a part and the number of distinct parts is not a part. A241379

Number of transpose partition pairs of order n whose number of odd parts differ by numbers of the form 4·k + 2. A190101

n+prime(n)+prime(prime(n)) is a triangular number, where prime(n) is the n-th prime. A116010

Starting positions of strings of three 2's in the decimal expansion of π. A83606

Numbers k such that k and k² use only the digits 1, 3, 4, 7 and 9. A137029

Define the sequence S(a₀,a₁) by a_n+2 is the least integer such that a_n+2/a_n+1>a_n+1/a_n for n >= 0. This is S(4,8). A19479

Number of nX4 0..3 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, no adjacent elements equal, and upper left element zero. A230827