Properties of the Number 42424

Forty-Two Thousand Four Hundred Twenty-Four

Basics

Value: 42423 → 42424 → 42425

Parity: even

Prime: No

Previous Prime: 42409

Next Prime: 42433

Digit Sum: 16

Digital Root: 7

Palindrome: Yes

Factorization: 2 ³ × 5303

Divisors: 1, 2, 4, 8, 5303, 10606, 21212, 42424

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010110111000

Octal: 122670

Duodecimal: 20674

Hexadecimal: a5b8

Square: 1799795776

Square Root: 205.97087172704786

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

Palindromes of the form 3n + 1 where n is also a palindrome: palindromes arising in A083829. A83830

Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5). A78870

a(n) = 82·2ⁿ + 440. A305268

Number of sequences of 2's and 3's of length n with curling number 3. A217212

Numbers with all digits even whose squares have all but one digit odd. A343728

Starting positions of strings of three 4's in the decimal expansion of π. A83615

Palindromes in which the sum of the internal digits = the sum of the external digits. A88285

Numerators of continued fraction convergents to sqrt(740). A42424

a(n) = nextprime(16 + A022008(n)) - (16 + A022008(n)). A79010