Properties of the Number 40016

Forty Thousand Sixteen

Basics

Value: 40015 → 40016 → 40017

Parity: even

Prime: No

Previous Prime: 40013

Next Prime: 40031

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 41 × 61

Divisors: 1, 2, 4, 8, 16, 41, 61, 82, 122, 164

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001110001010000

Octal: 116120

Duodecimal: 1B1A8

Hexadecimal: 9c50

Square: 1601280256

Square Root: 200.0399960007998

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,k) is (1/n) times the n-th derivative of the k-th tetration of x (power tower of order k) x^^k at x=1; square array A(n,k), n>=1, k>=1, read by antidiagonals. A295028

a(n) is the smallest k such that A342068(k) = n. A342069

a(n) is the numerator of (120·n² + 151·n + 47)/(512·n⁴ + 1024·n³ + 712·n² + 194·n + 15). A374580

a(n) = (1/n) times the n-th derivative of the third tetration of x (power tower of order 3) x^³ at x=1. A295103

Number of integer partitions of the n-th Fermi-Dirac prime into Fermi-Dirac primes. A316210

a(n) = 64·n² + 16. A157912

a(n) = 625·n² + 2·n. A158382

Expansion of e.g.f. exp(exp(2·x) - 1)/(1 - x). A367972

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 25. A31703

Scaled triangle A067327. A67328