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1,027,142

1,027,142 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.).

1,027,142 (one million twenty-seven thousand one hundred forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 241 × 2,131. Written other ways, in hexadecimal, 0xFAC46.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Self 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
2,417,201
Square (n²)
1,055,020,688,164
Cube (n³)
1,083,656,059,682,147,288
Divisor count
8
σ(n) — sum of divisors
1,547,832
φ(n) — Euler's totient
511,200
Sum of prime factors
2,374

Primality

Prime factorization: 2 × 241 × 2131

Nearest primes: 1,027,139 (−3) · 1,027,153 (+11)

Divisors & multiples

All divisors (8)
1 · 2 · 241 · 482 · 2131 · 4262 · 513571 (half) · 1027142
Aliquot sum (sum of proper divisors): 520,690
Factor pairs (a × b = 1,027,142)
1 × 1027142
2 × 513571
241 × 4262
482 × 2131
First multiples
1,027,142 · 2,054,284 (double) · 3,081,426 · 4,108,568 · 5,135,710 · 6,162,852 · 7,189,994 · 8,217,136 · 9,244,278 · 10,271,420

Sums & aliquot sequence

As consecutive integers: 256,784 + 256,785 + 256,786 + 256,787 4,142 + 4,143 + … + 4,382 584 + 585 + … + 1,547
Aliquot sequence: 1,027,142 520,690 416,570 520,006 260,006 130,006 65,006 32,506 16,256 16,384 16,383 6,145 1,235 445 95 25 6 — unresolved within range

Continued fraction of √n

√1,027,142 = [1013; (2, 12, 11, 8, 2, 2, 1, 8, 1, 1, 1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 4, 1, 3, 1, …)]

Representations

In words
one million twenty-seven thousand one hundred forty-two
Ordinal
1027142nd
Binary
11111010110001000110
Octal
3726106
Hexadecimal
0xFAC46
Base64
D6xG
One's complement
4,293,940,153 (32-bit)
Scientific notation
1.027142 × 10⁶
As a duration
1,027,142 s = 11 days, 21 hours, 19 minutes, 2 seconds
In other bases
ternary (3) 1221011222022
quaternary (4) 3322301012
quinary (5) 230332032
senary (6) 34003142
septenary (7) 11505404
nonary (9) 1834868
undecimal (11) 641786
duodecimal (12) 4164b2
tridecimal (13) 29c69c
tetradecimal (14) 1ca474
pentadecimal (15) 154512

As an angle

1,027,142° = 2,853 × 360° + 62°
62° ≈ 1.082 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬七千一百四十二
Chinese (financial)
壹佰零貳萬柒仟壹佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٧١٤٢ Devanagari १०२७१४२ Bengali ১০২৭১৪২ Tamil ௧௦௨௭௧௪௨ Thai ๑๐๒๗๑๔๒ Tibetan ༡༠༢༧༡༤༢ Khmer ១០២៧១៤២ Lao ໑໐໒໗໑໔໒ Burmese ၁၀၂၇၁၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1027142, here are decompositions:

  • 3 + 1027139 = 1027142
  • 13 + 1027129 = 1027142
  • 139 + 1027003 = 1027142
  • 163 + 1026979 = 1027142
  • 199 + 1026943 = 1027142
  • 229 + 1026913 = 1027142
  • 283 + 1026859 = 1027142
  • 313 + 1026829 = 1027142

Showing the first eight; more decompositions exist.

Hex color
#0FAC46
RGB(15, 172, 70)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.172.70.

Address
0.15.172.70
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.172.70

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 2, 7142 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7142-02-01 (DMMYYYY (Euro, single-digit day))
  • 7142-10-02 (MMDYYYY (US, single-digit day))
  • 7142-02-10 (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 1,027,142 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°.