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1,027,138

1,027,138 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.).

1,027,138 (one million twenty-seven thousand one hundred thirty-eight) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2 × 7² × 47 × 223. Written other ways, in hexadecimal, 0xFAC42.

Arithmetic Number Cube-Free Deficient Number Evil Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
8,317,201
Square (n²)
1,055,012,471,044
Cube (n³)
1,083,643,399,483,192,072
Divisor count
24
σ(n) — sum of divisors
1,838,592
φ(n) — Euler's totient
428,904
Sum of prime factors
286

Primality

Prime factorization: 2 × 7 2 × 47 × 223

Nearest primes: 1,027,129 (−9) · 1,027,139 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 7 · 14 · 47 · 49 · 94 · 98 · 223 · 329 · 446 · 658 · 1561 · 2303 · 3122 · 4606 · 10481 · 10927 · 20962 · 21854 · 73367 · 146734 · 513569 (half) · 1027138
Aliquot sum (sum of proper divisors): 811,454
Factor pairs (a × b = 1,027,138)
1 × 1027138
2 × 513569
7 × 146734
14 × 73367
47 × 21854
49 × 20962
94 × 10927
98 × 10481
223 × 4606
329 × 3122
446 × 2303
658 × 1561
First multiples
1,027,138 · 2,054,276 (double) · 3,081,414 · 4,108,552 · 5,135,690 · 6,162,828 · 7,189,966 · 8,217,104 · 9,244,242 · 10,271,380

Sums & aliquot sequence

As consecutive integers: 256,783 + 256,784 + 256,785 + 256,786 146,731 + 146,732 + … + 146,737 36,670 + 36,671 + … + 36,697 21,831 + 21,832 + … + 21,877
Aliquot sequence: 1,027,138 811,454 592,546 296,276 252,832 244,994 122,500 189,119 27,025 8,687 1,969 191 1 0 — terminates at zero

Continued fraction of √n

√1,027,138 = [1013; (2, 10, 1, 19, 1, 3, 2, 1, 5, 1, 1, 40, 1, 4, 1, 2, 1, 1012, 1, 2, 1, 4, 1, 40, …)]

Period length 36 — the block in parentheses repeats forever.

Representations

In words
one million twenty-seven thousand one hundred thirty-eight
Ordinal
1027138th
Binary
11111010110001000010
Octal
3726102
Hexadecimal
0xFAC42
Base64
D6xC
One's complement
4,293,940,157 (32-bit)
Scientific notation
1.027138 × 10⁶
As a duration
1,027,138 s = 11 days, 21 hours, 18 minutes, 58 seconds
In other bases
ternary (3) 1221011222011
quaternary (4) 3322301002
quinary (5) 230332023
senary (6) 34003134
septenary (7) 11505400
nonary (9) 1834864
undecimal (11) 641782
duodecimal (12) 4164aa
tridecimal (13) 29c698
tetradecimal (14) 1ca470
pentadecimal (15) 15450d

As an angle

1,027,138° = 2,853 × 360° + 58°
58° ≈ 1.012 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬七千一百三十八
Chinese (financial)
壹佰零貳萬柒仟壹佰參拾捌
In other modern scripts
Eastern Arabic ١٠٢٧١٣٨ Devanagari १०२७१३८ Bengali ১০২৭১৩৮ Tamil ௧௦௨௭௧௩௮ Thai ๑๐๒๗๑๓๘ Tibetan ༡༠༢༧༡༣༨ Khmer ១០២៧១៣៨ Lao ໑໐໒໗໑໓໘ Burmese ၁၀၂၇၁၃၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1027138, here are decompositions:

  • 11 + 1027127 = 1027138
  • 41 + 1027097 = 1027138
  • 71 + 1027067 = 1027138
  • 107 + 1027031 = 1027138
  • 137 + 1027001 = 1027138
  • 149 + 1026989 = 1027138
  • 191 + 1026947 = 1027138
  • 197 + 1026941 = 1027138

Showing the first eight; more decompositions exist.

Hex color
#0FAC42
RGB(15, 172, 66)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.172.66.

Address
0.15.172.66
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.172.66

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 7138 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7138-02-01 (DMMYYYY (Euro, single-digit day))
  • 7138-10-02 (MMDYYYY (US, single-digit day))
  • 7138-02-10 (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 1,027,138 and was likely granted around 1912.

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°.