Properties of the Number 3874

Three Thousand Eight Hundred Seventy-Four

Basics

Value: 3873 → 3874 → 3875

Parity: even

Prime: No

Previous Prime: 3863

Next Prime: 3877

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 13 × 149

Divisors: 1, 2, 13, 26, 149, 298, 1937, 3874

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100100010

Octal: 7442

Duodecimal: 22AA

Hexadecimal: f22

Square: 15007876

Square Root: 62.24146527838174

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

Twice partitioned numbers: the number of ways a number can be partitioned into not necessarily different parts and each part is again so partitioned. A63834

Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2·n²+2 for n > 0). A5893

Coordination sequence for body-centered tetragonal lattice. A8527

Q-toothpick sequence (see Comments for precise definition). A187210

Number of integer partitions of n without choosable initial intervals. A387118

Take the first n numbers written in base 15, concatenate them, then convert from base 15 to base 10. A48446

T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences. A200454

a(n) = 4 + floor(∑_k=1..n-1 a(k) / 2). A120134

Number T(n,k) of set partitions of [n] with symmetric block size list of length k; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A275281

a(n) = a(n-1) + a(m) for n >= 4, where m = 2·n - 3 - 2^p+1 and p is the smallest integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = a(2) = a(3) = 1. A50024