Properties of the Number 4145

Four Thousand One Hundred Forty-Five

Basics

Value: 4144 → 4145 → 4146

Parity: odd

Prime: No

Previous Prime: 4139

Next Prime: 4153

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 829

Divisors: 1, 5, 829, 4145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1000000110001

Octal: 10061

Duodecimal: 2495

Hexadecimal: 1031

Square: 17181025

Square Root: 64.38167441127949

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

Fourth spoke of a hexagonal spiral. A56108

Number of integer partitions of n whose length (number of parts) is equal to the sum of some submultiset. A367212

Number of integer partitions of n whose length cannot be written as a nonnegative linear combination of the distinct parts. A367219

T(n,k)=Number of length n+3 0..k arrays with some pair in every consecutive four terms totalling exactly k. A245950

Numbers that have 8 terms in their Zeckendorf representation. A179248

T(n,k)=Number of arrays of n integers in -k..k with sum zero and equal numbers of elements greater than zero and less than zero. A201811

a(n) is the least number of prime factors for any abundant number with p_n (the n-th prime) as its least factor. A108227

Positions of 18 after decimal point in decimal expansion of π. A134218

Number of arrays of n integers in -2..2 with sum zero and equal numbers of elements greater than zero and less than zero. A201805

Semiprimes in A056108. A113527