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1,005,506

1,005,506 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.).

1,005,506 (one million five thousand five hundred six) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 251 × 2,003. Written other ways, in hexadecimal, 0xF57C2.

Arithmetic Number Cube-Free Deficient Number Evil Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
6,055,001
Square (n²)
1,011,042,316,036
Cube (n³)
1,016,609,115,028,094,216
Divisor count
8
σ(n) — sum of divisors
1,515,024
φ(n) — Euler's totient
500,500
Sum of prime factors
2,256

Primality

Prime factorization: 2 × 251 × 2003

Nearest primes: 1,005,503 (−3) · 1,005,527 (+21)

Divisors & multiples

All divisors (8)
1 · 2 · 251 · 502 · 2003 · 4006 · 502753 (half) · 1005506
Aliquot sum (sum of proper divisors): 509,518
Factor pairs (a × b = 1,005,506)
1 × 1005506
2 × 502753
251 × 4006
502 × 2003
First multiples
1,005,506 · 2,011,012 (double) · 3,016,518 · 4,022,024 · 5,027,530 · 6,033,036 · 7,038,542 · 8,044,048 · 9,049,554 · 10,055,060

Sums & aliquot sequence

As consecutive integers: 251,375 + 251,376 + 251,377 + 251,378 3,881 + 3,882 + … + 4,131 500 + 501 + … + 1,503
Aliquot sequence: 1,005,506 509,518 257,930 206,362 127,034 73,606 52,394 35,734 21,074 11,434 5,720 9,400 12,920 19,480 24,440 36,040 51,440 — unresolved within range

Continued fraction of √n

√1,005,506 = [1002; (1, 2, 1, 79, 2, 7, 1, 4, 1, 2, 2, 1, 1, 1, 3, 2, 20, 1, 2, 25, 21, 14, 13, 4, …)]

Representations

In words
one million five thousand five hundred six
Ordinal
1005506th
Binary
11110101011111000010
Octal
3653702
Hexadecimal
0xF57C2
Base64
D1fC
One's complement
4,293,961,789 (32-bit)
Scientific notation
1.005506 × 10⁶
As a duration
1,005,506 s = 11 days, 15 hours, 18 minutes, 26 seconds
In other bases
ternary (3) 1220002021222
quaternary (4) 3311133002
quinary (5) 224134011
senary (6) 33315042
septenary (7) 11355335
nonary (9) 1802258
undecimal (11) 6274a7
duodecimal (12) 405a82
tridecimal (13) 292898
tetradecimal (14) 1c261c
pentadecimal (15) 14cddb

As an angle

1,005,506° = 2,793 × 360° + 26°
26° ≈ 0.454 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬五千五百零六
Chinese (financial)
壹佰萬伍仟伍佰零陸
In other modern scripts
Eastern Arabic ١٠٠٥٥٠٦ Devanagari १००५५०६ Bengali ১০০৫৫০৬ Tamil ௧௦௦௫௫௦௬ Thai ๑๐๐๕๕๐๖ Tibetan ༡༠༠༥༥༠༦ Khmer ១០០៥៥០៦ Lao ໑໐໐໕໕໐໖ Burmese ၁၀၀၅၅၀၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005506, here are decompositions:

  • 3 + 1005503 = 1005506
  • 13 + 1005493 = 1005506
  • 67 + 1005439 = 1005506
  • 79 + 1005427 = 1005506
  • 97 + 1005409 = 1005506
  • 157 + 1005349 = 1005506
  • 193 + 1005313 = 1005506
  • 277 + 1005229 = 1005506

Showing the first eight; more decompositions exist.

Hex color
#0F57C2
RGB(15, 87, 194)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.87.194.

Address
0.15.87.194
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.87.194

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 1,005,506 and was likely granted around 1911.

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

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.