Properties of the Number 45850

Forty-Five Thousand Eight Hundred Fifty

Basics

Value: 45849 → 45850 → 45851

Parity: even

Prime: No

Previous Prime: 45841

Next Prime: 45853

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 ² × 7 × 131

Divisors: 1, 2, 5, 7, 10, 14, 25, 35, 50, 70

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1011001100011010

Octal: 131432

Duodecimal: 2264A

Hexadecimal: b31a

Square: 2102222500

Square Root: 214.12613105363857

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

The first of three consecutive pentagonal numbers the sum of which is equal to the sum of three consecutive primes. A298250

Pentagonal numbers (A000326) in which parity of digits alternates. A297644

McKay-Thompson series of class 40C for Monster. A58664

a(n) = (2·n³ + 5·n² - 5·n)/2. A162265

a(n) = (A001359(n+1)² - 1)/24, where A001359 = lesser of twin primes; or: pentagonal numbers (A000326) whose indices are twin ranks (A002822). A308344

Pentagonal numbers for which both the sum of the digits and the product of the digits are pentagonal numbers. A117711

a(n) = round(10000·log₂(n)). A4269

a(n) = ceiling(10000·log₂(n)). A4270

Trajectory of 1 under map n->29n+1 if n odd, n->n/2 if n even. A33971

Pentagonal numbers for which the sum of the digits is also a pentagonal number. A117709