Live analysis

491,121

491,121 is a composite number, odd.

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.).

491,121 (four hundred ninety-one thousand one hundred twenty-one) is an odd 6-digit number. It is a composite number with 12 divisors, and factors as 3² × 197 × 277. Written other ways, in hexadecimal, 0x77E71.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number

Interestingness

★ ☆ ☆ ☆ ☆

2 notable facts · grade F

491,109 491,110 491,111 491,112 491,113 491,114 491,115 491,116 491,117 491,118 491,119 491,120 491,121 491,122 491,123 491,124 491,125 491,126 491,127 491,128 491,129 491,130 491,131 491,132 491,133

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Properties

Parity: Odd
Digit count: 6
Digit sum: 18
Digit product: 72
Digital root: 9
Palindrome: No
Bit width: 19 bits
Reversed: 121,194
Square (n²): 241,199,836,641
Cube (n³): 118,458,304,970,964,561
Divisor count: 12
σ(n) — sum of divisors: 715,572
φ(n) — Euler's totient: 324,576
Sum of prime factors: 480

Primality

Prime factorization: 3 ² × 197 × 277

Nearest primes: 491,083 (−38) · 491,129 (+8)

Divisors & multiples

All divisors (12)

1 · 3 · 9 · 197 · 277 · 591 · 831 · 1773 · 2493 · 54569 · 163707 · 491121

Aliquot sum (sum of proper divisors): 224,451

Factor pairs (a × b = 491,121)

1 × 491121

3 × 163707

9 × 54569

197 × 2493

277 × 1773

591 × 831

First multiples

491,121 · 982,242 (double) · 1,473,363 · 1,964,484 · 2,455,605 · 2,946,726 · 3,437,847 · 3,928,968 · 4,420,089 · 4,911,210

Sums & aliquot sequence

As a sum of two squares: 336² + 615² = 420² + 561²

As consecutive integers: 245,560 + 245,561 163,706 + 163,707 + 163,708 81,851 + 81,852 + 81,853 + 81,854 + 81,855 + 81,856 54,565 + 54,566 + … + 54,573

Aliquot sequence: 491,121 → 224,451 → 132,741 → 96,059 → 1 → 0 — terminates at zero

Continued fraction of √n

√491,121 = [700; (1, 4, 155, 1, 1, 6, 1, 154, 1, 6, 1, 1, 155, 4, 1, 1400)]

Period length 16 — the block in parentheses repeats forever.

Representations

In words: four hundred ninety-one thousand one hundred twenty-one
Ordinal: 491121st
Binary: 1110111111001110001
Octal: 1677161
Hexadecimal: 0x77E71
Base64: B35x
One's complement: 4,294,476,174 (32-bit)
Scientific notation: 4.91121 × 10⁵
As a duration: 491,121 s = 5 days, 16 hours, 25 minutes, 21 seconds

In other bases

ternary (3) 220221200200

quaternary (4) 1313321301

quinary (5) 111203441

senary (6) 14305413

septenary (7) 4113561

nonary (9) 827620

undecimal (11) 305a94

duodecimal (12) 1b8269

tridecimal (13) 142707

tetradecimal (14) cada1

pentadecimal (15) 9a7b6

As an angle

491,121° = 1,364 × 360° + 81°

81° ≈ 1.414 rad

Compass bearing: E (east)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓎆𓎆𓏺
Greek (Milesian): ͵υϟαρκαʹ
Chinese: 四十九萬一千一百二十一
Chinese (financial): 肆拾玖萬壹仟壹佰貳拾壹

In other modern scripts

Eastern Arabic ٤٩١١٢١ Devanagari ४९११२१ Bengali ৪৯১১২১ Tamil ௪௯௧௧௨௧ Thai ๔๙๑๑๒๑ Tibetan ༤༩༡༡༢༡ Khmer ៤៩១១២១ Lao ໔໙໑໑໒໑ Burmese ၄၉၁၁၂၁

Also seen as

Hex color

#077E71

RGB(7, 126, 113)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.126.113.

Address: 0.7.126.113
Class: reserved
IPv4-mapped IPv6: ::ffff:0.7.126.113

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 491,121 and was likely granted around 1892.

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

Look up US491,121 on Google Patents ↗ Look up on USPTO ↗