Properties of the Number 69874

Sixty-Nine Thousand Eight Hundred Seventy-Four

Basics

Value: 69873 → 69874 → 69875

Parity: even

Prime: No

Previous Prime: 69859

Next Prime: 69877

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 ² × 23 × 31

Divisors: 1, 2, 7, 14, 23, 31, 46, 49, 62, 98

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000011110010

Octal: 210362

Duodecimal: 3452A

Hexadecimal: 110f2

Square: 4882375876

Square Root: 264.3369062389889

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

Principal diagonal of the convolution array A213828. A213829

Numbers n such that (i) the sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1, and (ii) n and n+1 have the same number of prime divisors (with repetition). A237929

Total number of permutation arrays of side length n and dimension k as defined by Eriksson and Linusson (2000a); square array T(n,k), read by ascending antidiagonals, for n, k >= 1. A330490

(k²)-th k-smooth number for k = prime(n). A133581

Proceed counterclockwise on the outer keys of a numeric keypad (i.e., 1,2,3,6,9,8,7,4): first single digits, then concatenate two digits, then three, etc. A249182

a(1) = a(2) = 1; a(n) = 2^a(n-1) + 2^a(n-2) for n > 2. A69874