Live analysis

491,442

491,442 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

491,442 (four hundred ninety-one thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 7 × 11,701. Its proper divisors sum to 631,950, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77FB2.

Abundant Number Arithmetic Number Cube-Free Evil Number Gapful Number Semiperfect Number Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

491,430 491,431 491,432 491,433 491,434 491,435 491,436 491,437 491,438 491,439 491,440 491,441 491,442 491,443 491,444 491,445 491,446 491,447 491,448 491,449 491,450 491,451 491,452 491,453 491,454

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Properties

Parity: Even
Digit count: 6
Digit sum: 24
Digit product: 1,152
Digital root: 6
Palindrome: No
Bit width: 19 bits
Reversed: 244,194
Square (n²): 241,515,239,364
Cube (n³): 118,690,732,263,522,888
Divisor count: 16
σ(n) — sum of divisors: 1,123,392
φ(n) — Euler's totient: 140,400
Sum of prime factors: 11,713

Primality

Prime factorization: 2 × 3 × 7 × 11701

Nearest primes: 491,429 (−13) · 491,461 (+19)

Divisors & multiples

All divisors (16)

1 · 2 · 3 · 6 · 7 · 14 · 21 · 42 · 11701 · 23402 · 35103 · 70206 · 81907 · 163814 · 245721 (half) · 491442

Aliquot sum (sum of proper divisors): 631,950

Factor pairs (a × b = 491,442)

1 × 491442

2 × 245721

3 × 163814

6 × 81907

7 × 70206

14 × 35103

21 × 23402

42 × 11701

First multiples

491,442 · 982,884 (double) · 1,474,326 · 1,965,768 · 2,457,210 · 2,948,652 · 3,440,094 · 3,931,536 · 4,422,978 · 4,914,420

Sums & aliquot sequence

As consecutive integers: 163,813 + 163,814 + 163,815 122,859 + 122,860 + 122,861 + 122,862 70,203 + 70,204 + … + 70,209 40,948 + 40,949 + … + 40,959

Aliquot sequence: 491,442 → 631,950 → 1,082,226 → 1,082,238 → 1,092,882 → 1,405,230 → 2,078,418 → 2,259,438 → 2,259,450 → 3,812,148 → 6,392,592 → 11,713,392 → 21,068,240 → 28,113,880 → 35,142,440 → 44,163,040 → 60,172,520 — unresolved within range

Continued fraction of √n

√491,442 = [701; (34, 5, 9, 2, 2, 8, 1, 7, 2, 2, 15, 2, 1, 6, 1, 1, 2, 3, 1, 23, 1, 4, 1, 2, …)]

Representations

In words: four hundred ninety-one thousand four hundred forty-two
Ordinal: 491442nd
Binary: 1110111111110110010
Octal: 1677662
Hexadecimal: 0x77FB2
Base64: B3+y
One's complement: 4,294,475,853 (32-bit)
Scientific notation: 4.91442 × 10⁵
As a duration: 491,442 s = 5 days, 16 hours, 30 minutes, 42 seconds

In other bases

ternary (3) 220222010120

quaternary (4) 1313332302

quinary (5) 111211232

senary (6) 14311110

septenary (7) 4114530

nonary (9) 828116

undecimal (11) 306256

duodecimal (12) 1b8496

tridecimal (13) 1428c3

tetradecimal (14) cb150

pentadecimal (15) 9a92c

As an angle

491,442° = 1,365 × 360° + 42°

42° ≈ 0.733 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵υϟαυμβʹ
Chinese: 四十九萬一千四百四十二
Chinese (financial): 肆拾玖萬壹仟肆佰肆拾貳

In other modern scripts

Eastern Arabic ٤٩١٤٤٢ Devanagari ४९१४४२ Bengali ৪৯১৪৪২ Tamil ௪௯௧௪௪௨ Thai ๔๙๑๔๔๒ Tibetan ༤༩༡༤༤༢ Khmer ៤៩១៤៤២ Lao ໔໙໑໔໔໒ Burmese ၄၉၁၄၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 491442, here are decompositions:

13 + 491429 = 491442
19 + 491423 = 491442
71 + 491371 = 491442
89 + 491353 = 491442
101 + 491341 = 491442
103 + 491339 = 491442
109 + 491333 = 491442
113 + 491329 = 491442

Showing the first eight; more decompositions exist.

Hex color

#077FB2

RGB(7, 127, 178)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.127.178.

Address: 0.7.127.178
Class: reserved
IPv4-mapped IPv6: ::ffff:0.7.127.178

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 491,442 and was likely granted around 1893.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Look up US491,442 on Google Patents ↗ Look up on USPTO ↗