Properties of the Number 74897

Seventy-Four Thousand Eight Hundred Ninety-Seven

Basics

Value: 74896 → 74897 → 74898

Parity: odd

Prime: Yes

Previous Prime: 74891

Next Prime: 74903

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 74897

Divisors: 1, 74897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010010010001

Octal: 222221

Duodecimal: 37415

Hexadecimal: 12491

Square: 5609560609

Square Root: 273.67316273248275

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

a(n) = (2·8ⁿ⁺¹ - 9) / 7. A233328

Primes of the form R = 2^k-1+(2^k-2)/(2^p-k-1), where p are Mersenne prime exponents listed in A000043. A242025

a(n) = a(n-1) + a(n-2) + 2·a(n-3) with a(0)=2, a(1)=1, a(2)=5. A226308

Irregular array read by rows in which row n lists the positive integers k in ascending order for which 1 is in a primitive cycle of n positive integers under iteration by the Collatz-like 3x+k function. A226618

Prime Friedman numbers. A112419

Expansion of x*(1+3·x-4·x²-5·x³-4·x⁶+4·x⁵+3·x⁴) / ((1+4·x²)*(1+x²)*(1-x²+x⁴)). A112523

Primes whose base-8 representation also is the base-3 representation of a prime. A235471

Primes p such that Euler(p, 1) is an integer multiple of Bernoulli(p + 1, 1). A341759

Primes that can be generated by the concatenation in base 8, in descending order, of two consecutive integers read in base 10. A287311

Number of integers k such that R = (2^k*Q - Q - 1)/(Q + 1 - 2^k) is a prime number, when Q = A000668(n) is the n-th Mersenne prime. A242998