Properties of the Number 48139

Forty-Eight Thousand One Hundred Thirty-Nine

Basics

Value: 48138 → 48139 → 48140

Parity: odd

Prime: No

Previous Prime: 48131

Next Prime: 48157

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 13 × 23 ²

Divisors: 1, 7, 13, 23, 91, 161, 299, 529, 2093, 3703

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1011110000001011

Octal: 136013

Duodecimal: 23A37

Hexadecimal: bc0b

Square: 2317363321

Square Root: 219.4060163258975

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

Nonpalindromic numbers k such that k is not divisible by 10 and k·R(k) is a square, where R(k) is the reversal of k (A004086). A62917

Numbers k such that all the following properties hold: (i) k·reverse(k) is a square; (ii) k ≠ reverse(k); (iii) k and reverse(k) are not both squares; and (iv) k and reverse(k) have the same number of digits. A82994

Apocalypse primes: 10⁶⁶⁵+a(n) has 666 decimal digits and is prime. A115983

Numbers that can be written as the sum of four or more consecutive squares in more than one way. A307937

Number of planar partitions of n, when partitions that are rotations of each other (when regarded as 3-D objects) are counted only once. A48139