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1,005,998

1,005,998 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.).

1,005,998 (one million five thousand nine hundred ninety-eight) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 7 × 181 × 397. Written other ways, in hexadecimal, 0xF59AE.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
32
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
8,995,001
Square (n²)
1,012,031,976,004
Cube (n³)
1,018,102,143,796,071,992
Divisor count
16
σ(n) — sum of divisors
1,738,464
φ(n) — Euler's totient
427,680
Sum of prime factors
587

Primality

Prime factorization: 2 × 7 × 181 × 397

Nearest primes: 1,005,989 (−9) · 1,006,003 (+5)

Divisors & multiples

All divisors (16)
1 · 2 · 7 · 14 · 181 · 362 · 397 · 794 · 1267 · 2534 · 2779 · 5558 · 71857 · 143714 · 502999 (half) · 1005998
Aliquot sum (sum of proper divisors): 732,466
Factor pairs (a × b = 1,005,998)
1 × 1005998
2 × 502999
7 × 143714
14 × 71857
181 × 5558
362 × 2779
397 × 2534
794 × 1267
First multiples
1,005,998 · 2,011,996 (double) · 3,017,994 · 4,023,992 · 5,029,990 · 6,035,988 · 7,041,986 · 8,047,984 · 9,053,982 · 10,059,980

Sums & aliquot sequence

As consecutive integers: 251,498 + 251,499 + 251,500 + 251,501 143,711 + 143,712 + … + 143,717 35,915 + 35,916 + … + 35,942 5,468 + 5,469 + … + 5,648
Aliquot sequence: 1,005,998 732,466 537,038 268,522 160,022 99,178 58,394 45,094 32,234 17,014 9,194 4,600 6,560 9,316 8,072 7,078 3,542 — unresolved within range

Continued fraction of √n

√1,005,998 = [1002; (1, 181, 2, 1, 3, 16, 3, 3, 1, 2, 3, 1, 4, 1, 3, 2, 1, 3, 3, 16, 3, 1, 2, 181, …)]

Period length 26 — the block in parentheses repeats forever.

Representations

In words
one million five thousand nine hundred ninety-eight
Ordinal
1005998th
Binary
11110101100110101110
Octal
3654656
Hexadecimal
0xF59AE
Base64
D1mu
One's complement
4,293,961,297 (32-bit)
Scientific notation
1.005998 × 10⁶
As a duration
1,005,998 s = 11 days, 15 hours, 26 minutes, 38 seconds
In other bases
ternary (3) 1220002222012
quaternary (4) 3311212232
quinary (5) 224142443
senary (6) 33321222
septenary (7) 11356640
nonary (9) 1802865
undecimal (11) 627904
duodecimal (12) 406212
tridecimal (13) 292b86
tetradecimal (14) 1c2890
pentadecimal (15) 14d118

As an angle

1,005,998° = 2,794 × 360° + 158°
158° ≈ 2.758 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬五千九百九十八
Chinese (financial)
壹佰萬伍仟玖佰玖拾捌
In other modern scripts
Eastern Arabic ١٠٠٥٩٩٨ Devanagari १००५९९८ Bengali ১০০৫৯৯৮ Tamil ௧௦௦௫௯௯௮ Thai ๑๐๐๕๙๙๘ Tibetan ༡༠༠༥༩༩༨ Khmer ១០០៥៩៩៨ Lao ໑໐໐໕໙໙໘ Burmese ၁၀၀၅၉၉၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005998, here are decompositions:

  • 61 + 1005937 = 1005998
  • 67 + 1005931 = 1005998
  • 337 + 1005661 = 1005998
  • 379 + 1005619 = 1005998
  • 457 + 1005541 = 1005998
  • 541 + 1005457 = 1005998
  • 571 + 1005427 = 1005998
  • 607 + 1005391 = 1005998

Showing the first eight; more decompositions exist.

Hex color
#0F59AE
RGB(15, 89, 174)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.89.174.

Address
0.15.89.174
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.89.174

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 1,005,998 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°.