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1,028,042

1,028,042 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.).

1,028,042 (one million twenty-eight thousand forty-two) is an even 7-digit number. It is a composite number with 4 divisors, and factors as 2 × 514,021. Written other ways, in hexadecimal, 0xFAFCA.

Cube-Free Deficient Number Evil Number Self Number Semiprime Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
2,408,201
Square (n²)
1,056,870,353,764
Cube (n³)
1,086,507,112,224,250,088
Divisor count
4
σ(n) — sum of divisors
1,542,066
φ(n) — Euler's totient
514,020
Sum of prime factors
514,023

Primality

Prime factorization: 2 × 514021

Nearest primes: 1,028,029 (−13) · 1,028,047 (+5)

Divisors & multiples

All divisors (4)
1 · 2 · 514021 (half) · 1028042
Aliquot sum (sum of proper divisors): 514,024
Factor pairs (a × b = 1,028,042)
1 × 1028042
2 × 514021
First multiples
1,028,042 · 2,056,084 (double) · 3,084,126 · 4,112,168 · 5,140,210 · 6,168,252 · 7,196,294 · 8,224,336 · 9,252,378 · 10,280,420

Sums & aliquot sequence

As a sum of two squares: 649² + 779²
As consecutive integers: 257,009 + 257,010 + 257,011 + 257,012
Aliquot sequence: 1,028,042 514,024 612,056 535,564 407,924 387,724 290,800 408,808 365,372 365,428 390,796 437,780 650,860 911,540 1,410,892 1,482,068 1,556,716 — unresolved within range

Continued fraction of √n

√1,028,042 = [1013; (1, 12, 5, 1, 15, 1, 3, 1, 2, 8, 1, 17, 19, 13, 2, 1, 1, 1, 7, 3, 1, 3, 1, 1, …)]

Representations

In words
one million twenty-eight thousand forty-two
Ordinal
1028042nd
Binary
11111010111111001010
Octal
3727712
Hexadecimal
0xFAFCA
Base64
D6/K
One's complement
4,293,939,253 (32-bit)
Scientific notation
1.028042 × 10⁶
As a duration
1,028,042 s = 11 days, 21 hours, 34 minutes, 2 seconds
In other bases
ternary (3) 1221020012122
quaternary (4) 3322333022
quinary (5) 230344132
senary (6) 34011242
septenary (7) 11511131
nonary (9) 1836178
undecimal (11) 642424
duodecimal (12) 416b22
tridecimal (13) 29cc12
tetradecimal (14) 1ca918
pentadecimal (15) 154912

As an angle

1,028,042° = 2,855 × 360° + 242°
242° ≈ 4.224 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬八千零四十二
Chinese (financial)
壹佰零貳萬捌仟零肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٨٠٤٢ Devanagari १०२८०४२ Bengali ১০২৮০৪২ Tamil ௧௦௨௮௦௪௨ Thai ๑๐๒๘๐๔๒ Tibetan ༡༠༢༨༠༤༢ Khmer ១០២៨០៤២ Lao ໑໐໒໘໐໔໒ Burmese ၁၀၂၈၀၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028042, here are decompositions:

  • 13 + 1028029 = 1028042
  • 19 + 1028023 = 1028042
  • 31 + 1028011 = 1028042
  • 73 + 1027969 = 1028042
  • 151 + 1027891 = 1028042
  • 283 + 1027759 = 1028042
  • 349 + 1027693 = 1028042
  • 523 + 1027519 = 1028042

Showing the first eight; more decompositions exist.

Hex color
#0FAFCA
RGB(15, 175, 202)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.175.202.

Address
0.15.175.202
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.175.202

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 8042 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8042-02-01 (DMMYYYY (Euro, single-digit day))
  • 8042-10-02 (MMDYYYY (US, single-digit day))
  • 8042-02-10 (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 1,028,042 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°.