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491,201

491,201 is a prime, 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.).

491,201 (four hundred ninety-one thousand two hundred one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x77EC1.

Arithmetic Number Chen Prime Cube-Free Deficient Number Evil Number Happy Number Prime Pythagorean Prime Self Number Sophie Germain Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
19 bits
Reversed
102,194
Square (n²)
241,278,422,401
Cube (n³)
118,516,202,361,793,601
Divisor count
2
σ(n) — sum of divisors
491,202
φ(n) — Euler's totient
491,200

Primality

491,201 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 491201
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 491,201)
1 × 491201
First multiples
491,201 · 982,402 (double) · 1,473,603 · 1,964,804 · 2,456,005 · 2,947,206 · 3,438,407 · 3,929,608 · 4,420,809 · 4,912,010

Sums & aliquot sequence

As a sum of two squares: 185² + 676²
As consecutive integers: 245,600 + 245,601

Continued fraction of √n

√491,201 = [700; (1, 6, 107, 1, 2, 7, 4, 8, 19, 12, 2, 6, 3, 1, 6, 4, 87, 2, 1, 2, 1, 2, 1, 1, …)]

Representations

In words
four hundred ninety-one thousand two hundred one
Ordinal
491201st
Binary
1110111111011000001
Octal
1677301
Hexadecimal
0x77EC1
Base64
B37B
One's complement
4,294,476,094 (32-bit)
Scientific notation
4.91201 × 10⁵
As a duration
491,201 s = 5 days, 16 hours, 26 minutes, 41 seconds
In other bases
ternary (3) 220221210122
quaternary (4) 1313323001
quinary (5) 111204301
senary (6) 14310025
septenary (7) 4114034
nonary (9) 827718
undecimal (11) 306057
duodecimal (12) 1b8315
tridecimal (13) 142769
tetradecimal (14) cb01b
pentadecimal (15) 9a81b

As an angle

491,201° = 1,364 × 360° + 161°
161° ≈ 2.81 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓏺
Greek (Milesian)
͵υϟασαʹ
Chinese
四十九萬一千二百零一
Chinese (financial)
肆拾玖萬壹仟貳佰零壹
In other modern scripts
Eastern Arabic ٤٩١٢٠١ Devanagari ४९१२०१ Bengali ৪৯১২০১ Tamil ௪௯௧௨௦௧ Thai ๔๙๑๒๐๑ Tibetan ༤༩༡༢༠༡ Khmer ៤៩១២០១ Lao ໔໙໑໒໐໑ Burmese ၄၉၁၂၀၁

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#077EC1
RGB(7, 126, 193)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.126.193.

Address
0.7.126.193
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.126.193

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 491,201 and was likely granted around 1892.

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

Related reading

  • Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.