Properties of the Number 74857

Seventy-Four Thousand Eight Hundred Fifty-Seven

Basics

Value: 74856 → 74857 → 74858

Parity: odd

Prime: Yes

Previous Prime: 74843

Next Prime: 74861

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 74857

Divisors: 1, 74857

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010010001101001

Octal: 222151

Duodecimal: 373A1

Hexadecimal: 12469

Square: 5603570449

Square Root: 273.60007309940545

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

The·member of the positive proper fundamental solution (x = x2(n), y = y2(n)) of the second class for the Pell equation x² - D(n)*y² = +8 for odd D(n) = A263012(n). A264351

Primes p such that p+12, p+1234 and p+123456 are also prime. A236304

Primes that remain prime through 4 iterations of function f(x) = 5·x + 6. A23315

Numerators of continued fraction convergents to sqrt(329). A41620

Expansion of (1+3·x+14·x²-10·x³-10·x⁴+16·x⁵+15·x⁶-15·x⁷-2·x⁸+4·x⁹+8·x¹⁰) / ((1+4·x²)*(1-x²+x⁴)*(1+x²)²). A112522

Primes p such that p + 4, p + 12 and p + 16 are also primes. A384298

Primes of the form 25n²-14n+2 for n >= 0. A154356

Primes p such that the period of the continued fraction of (1-sqrt(p))/2 has length 3 and p is not of the form k²+1. A188136

a(n) = n² + 2329·n + 1697. A301985

Primes p such that all p-pal for p/2 < pal < p are nonprime, where pal is a palindrome. A74857