Properties of the Number 74841

Seventy-Four Thousand Eight Hundred Forty-One

Basics

Value: 74840 → 74841 → 74842

Parity: odd

Prime: No

Previous Prime: 74831

Next Prime: 74843

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 13 × 19 × 101

Divisors: 1, 3, 13, 19, 39, 57, 101, 247, 303, 741

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010010001011001

Octal: 222131

Duodecimal: 37389

Hexadecimal: 12459

Square: 5601175281

Square Root: 273.57083177853593

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

Numbers k such that σ(k-φ(k)) = φ(k). A70170

Fixed points of the mapping k -> abs(reverse(lpd(k))-reverse(Lpf(k))). lpd(k) is the largest proper divisor and Lpf(k) is the largest prime factor of k. A76426

Triangle read by rows, arising in enumeration of permutations by cyclic peaks. A216962

Number of integer partitions of n such that the product of parts is greater than the sum of primes indexed by the parts. A380411

Triangle read by rows, related to Bell numbers A000110: A216962 interlaced with A216964. A217204

Square root of n contains n as a string of digits to the immediate right of the decimal point (excluding leading zeros). A74841