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505,321

505,321 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.).

505,321 (five hundred five thousand three hundred twenty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x7B5E9.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Prime Pythagorean Prime Sexy Prime Squarefree Twin Prime

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
19 bits
Reversed
123,505
Square (n²)
255,349,313,041
Cube (n³)
129,033,370,215,191,161
Divisor count
2
σ(n) — sum of divisors
505,322
φ(n) — Euler's totient
505,320

Primality

505,321 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 505321
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 505,321)
1 × 505321
First multiples
505,321 · 1,010,642 (double) · 1,515,963 · 2,021,284 · 2,526,605 · 3,031,926 · 3,537,247 · 4,042,568 · 4,547,889 · 5,053,210

Sums & aliquot sequence

As a sum of two squares: 411² + 580²
As consecutive integers: 252,660 + 252,661

Continued fraction of √n

√505,321 = [710; (1, 6, 9, 6, 1, 2, 3, 1, 6, 1, 1, 1, 2, 1, 4, 5, 5, 1, 3, 9, 31, 2, 17, 16, …)]

Representations

In words
five hundred five thousand three hundred twenty-one
Ordinal
505321st
Binary
1111011010111101001
Octal
1732751
Hexadecimal
0x7B5E9
Base64
B7Xp
One's complement
4,294,461,974 (32-bit)
Scientific notation
5.05321 × 10⁵
As a duration
505,321 s = 5 days, 20 hours, 22 minutes, 1 second
In other bases
ternary (3) 221200011121
quaternary (4) 1323113221
quinary (5) 112132241
senary (6) 14455241
septenary (7) 4203145
nonary (9) 850147
undecimal (11) 315723
duodecimal (12) 204521
tridecimal (13) 14900b
tetradecimal (14) d2225
pentadecimal (15) 9ead1

As an angle

505,321° = 1,403 × 360° + 241°
241° ≈ 4.206 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋 𒌋𒌋𒁹𒁹 𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian)
͵φετκαʹ
Chinese
五十萬五千三百二十一
Chinese (financial)
伍拾萬伍仟參佰貳拾壹
In other modern scripts
Eastern Arabic ٥٠٥٣٢١ Devanagari ५०५३२१ Bengali ৫০৫৩২১ Tamil ௫௦௫௩௨௧ Thai ๕๐๕๓๒๑ Tibetan ༥༠༥༣༢༡ Khmer ៥០៥៣២១ Lao ໕໐໕໓໒໑ Burmese ၅၀၅၃၂၁

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: twin with 505319, sexy with 505327.

Hex color
#07B5E9
RGB(7, 181, 233)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.181.233.

Address
0.7.181.233
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.181.233

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 505,321 and was likely granted around 1893.

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.