Properties of the Number 749

Seven Hundred Forty-Nine

Basics

Value: 748 → 749 → 750

Parity: odd

Prime: No

Previous Prime: 743

Next Prime: 751

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 107

Divisors: 1, 7, 107, 749

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1011101101

Octal: 1355

Duodecimal: 525

Hexadecimal: 2ed

Square: 561001

Square Root: 27.367864366808018

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

Number of partitions of n into parts 3k and 3k+1 with at least one part of each type. A35618

Sums of three consecutive primes. A34961

Number of partitions of n with a product greater than n. A114324

Matula-Goebel numbers of lone-child-avoiding rooted trees. A291636

Multiples of 7 containing a 7 in their decimal representation. A121027

Trimorphic numbers: n³ ends with n. Also m-morphic numbers for all m > 5 such that m-1 is not divisible by 10 and m == 3 (mod 4). A33819

Numbers whose sum of digits is 20. A235229

Generalized 29-gonal (or icosienneagonal) numbers: m*(27·m - 25)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303815

Lunar primes (formerly called dismal primes) (cf. A087062). A87097

|First digit - second digit + third digit - fourth digit ...| = 12. A60980