ℕ atory
Play Now

Properties of the Number 23804

Twenty-Three Thousand Eight Hundred Four

Basics

Value: 23803 → 23804 → 23805

Parity: even

Prime: No

Previous Prime: 23801

Next Prime: 23813

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 2 × 11 × 541

Divisors: 1, 2, 4, 11, 22, 44, 541, 1082, 2164, 5951

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101110011111100

Octal: 56374

Duodecimal: 11938

Hexadecimal: 5cfc

Square: 566630416

Square Root: 154.28544973522293

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

Total sum of odd parts in the last section of the set of partitions of n. A206435
Number of partitions p of n such that (number of numbers of the form 5k in p) is a part of p. A241549
Number of solutions to c(1)*prime(3)+...+c(n)*prime(n+2) = 2, where c(i) = +-1 for i>1, c(1) = 1. A22902
Even composite integers m such that U(m)2 == 1 (mod m) and V(m) == 3 (mod m), where U(m)=A001906(m) and V(m)=A005248(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=3 and b=1, respectively. A337777
Numbers k such that k divides the (k+1)st Lucas number. A94397
Planar trees where no branch is identical to its adjacent neighbor. A106363
Even composite integers m such that U(m)2 == 1 (mod m) and V(m) == 7 (mod m), where U(m)=A004187(m) and V(m)=A056854(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=7 and b=1, respectively. A337782
a(n) = 4*(5·n2 - 5·n + 1). A193448
a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 3, where m = 2·n - 3 - 2p+1 and p is the unique integer such that 2p < n - 1 <= 2p+1, starting with a(1) = 1 and a(2) = 3. A49924
Xenodromes: all digits in base 9 are different. A23804