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1,018,494

1,018,494 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.).

1,018,494 (one million eighteen thousand four hundred ninety-four) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2 × 3⁴ × 6,287. Its proper divisors sum to 1,264,050, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF8A7E.

Abundant Number Harshad / Niven Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
27
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
4,948,101
Square (n²)
1,037,330,028,036
Cube (n³)
1,056,514,409,574,497,784
Divisor count
20
σ(n) — sum of divisors
2,282,544
φ(n) — Euler's totient
339,444
Sum of prime factors
6,301

Primality

Prime factorization: 2 × 3 4 × 6287

Nearest primes: 1,018,489 (−5) · 1,018,513 (+19)

Divisors & multiples

All divisors (20)
1 · 2 · 3 · 6 · 9 · 18 · 27 · 54 · 81 · 162 · 6287 · 12574 · 18861 · 37722 · 56583 · 113166 · 169749 · 339498 · 509247 (half) · 1018494
Aliquot sum (sum of proper divisors): 1,264,050
Factor pairs (a × b = 1,018,494)
1 × 1018494
2 × 509247
3 × 339498
6 × 169749
9 × 113166
18 × 56583
27 × 37722
54 × 18861
81 × 12574
162 × 6287
First multiples
1,018,494 · 2,036,988 (double) · 3,055,482 · 4,073,976 · 5,092,470 · 6,110,964 · 7,129,458 · 8,147,952 · 9,166,446 · 10,184,940

Sums & aliquot sequence

As consecutive integers: 339,497 + 339,498 + 339,499 254,622 + 254,623 + 254,624 + 254,625 113,162 + 113,163 + … + 113,170 84,869 + 84,870 + … + 84,880
Aliquot sequence: 1,018,494 1,264,050 2,197,317 732,443 1,717 119 25 6 6 — reaches a perfect number

Continued fraction of √n

√1,018,494 = [1009; (4, 1, 7, 1, 4, 1, 2, 1, 3, 1, 2, 3, 3, 4, 1, 2, 2, 1, 1, 4, 1, 1, 1, 8, …)]

Representations

In words
one million eighteen thousand four hundred ninety-four
Ordinal
1018494th
Binary
11111000101001111110
Octal
3705176
Hexadecimal
0xF8A7E
Base64
D4p+
One's complement
4,293,948,801 (32-bit)
Scientific notation
1.018494 × 10⁶
As a duration
1,018,494 s = 11 days, 18 hours, 54 minutes, 54 seconds
In other bases
ternary (3) 1220202010000
quaternary (4) 3320221332
quinary (5) 230042434
senary (6) 33455130
septenary (7) 11441241
nonary (9) 1822100
undecimal (11) 636234
duodecimal (12) 4114a6
tridecimal (13) 298779
tetradecimal (14) 1c7258
pentadecimal (15) 151b99

As an angle

1,018,494° = 2,829 × 360° + 54°
54° ≈ 0.942 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Chinese
一百零一萬八千四百九十四
Chinese (financial)
壹佰零壹萬捌仟肆佰玖拾肆
In other modern scripts
Eastern Arabic ١٠١٨٤٩٤ Devanagari १०१८४९४ Bengali ১০১৮৪৯৪ Tamil ௧௦௧௮௪௯௪ Thai ๑๐๑๘๔๙๔ Tibetan ༡༠༡༨༤༩༤ Khmer ១០១៨៤៩៤ Lao ໑໐໑໘໔໙໔ Burmese ၁၀၁၈၄၉၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018494, here are decompositions:

  • 5 + 1018489 = 1018494
  • 17 + 1018477 = 1018494
  • 23 + 1018471 = 1018494
  • 47 + 1018447 = 1018494
  • 73 + 1018421 = 1018494
  • 83 + 1018411 = 1018494
  • 137 + 1018357 = 1018494
  • 157 + 1018337 = 1018494

Showing the first eight; more decompositions exist.

Hex color
#0F8A7E
RGB(15, 138, 126)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.138.126.

Address
0.15.138.126
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.138.126

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 1, 8494 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8494-10-01 (MMDYYYY (US, single-digit day))
  • 8494-01-10 (DDMYYYY (Euro, single-digit month))
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 1,018,494 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°.