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1,022,842

1,022,842 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.).

1,022,842 (one million twenty-two thousand eight hundred forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 137 × 3,733. Written other ways, in hexadecimal, 0xF9B7A.

Cube-Free Deficient Number Evil Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
2,482,201
Square (n²)
1,046,205,756,964
Cube (n³)
1,070,103,188,864,571,688
Divisor count
8
σ(n) — sum of divisors
1,545,876
φ(n) — Euler's totient
507,552
Sum of prime factors
3,872

Primality

Prime factorization: 2 × 137 × 3733

Nearest primes: 1,022,837 (−5) · 1,022,843 (+1)

Divisors & multiples

All divisors (8)
1 · 2 · 137 · 274 · 3733 · 7466 · 511421 (half) · 1022842
Aliquot sum (sum of proper divisors): 523,034
Factor pairs (a × b = 1,022,842)
1 × 1022842
2 × 511421
137 × 7466
274 × 3733
First multiples
1,022,842 · 2,045,684 (double) · 3,068,526 · 4,091,368 · 5,114,210 · 6,137,052 · 7,159,894 · 8,182,736 · 9,205,578 · 10,228,420

Sums & aliquot sequence

As a sum of two squares: 69² + 1,009² = 701² + 729²
As consecutive integers: 255,709 + 255,710 + 255,711 + 255,712 7,398 + 7,399 + … + 7,534 1,593 + 1,594 + … + 2,140
Aliquot sequence: 1,022,842 523,034 269,446 137,354 98,134 50,546 26,254 13,130 12,574 6,290 6,022 3,014 1,954 980 1,414 1,034 694 — unresolved within range

Continued fraction of √n

√1,022,842 = [1011; (2, 1, 4, 7, 1, 9, 1, 288, 19, 1, 1, 1, 2, 1, 3, 1, 3, 1, 1, 40, 1, 2, 1, 1, …)]

Representations

In words
one million twenty-two thousand eight hundred forty-two
Ordinal
1022842nd
Binary
11111001101101111010
Octal
3715572
Hexadecimal
0xF9B7A
Base64
D5t6
One's complement
4,293,944,453 (32-bit)
Scientific notation
1.022842 × 10⁶
As a duration
1,022,842 s = 11 days, 20 hours, 7 minutes, 22 seconds
In other bases
ternary (3) 1220222002001
quaternary (4) 3321231322
quinary (5) 230212332
senary (6) 33531214
septenary (7) 11460022
nonary (9) 1828061
undecimal (11) 639527
duodecimal (12) 413b0a
tridecimal (13) 29a742
tetradecimal (14) 1c8a82
pentadecimal (15) 1530e7

As an angle

1,022,842° = 2,841 × 360° + 82°
82° ≈ 1.431 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬二千八百四十二
Chinese (financial)
壹佰零貳萬貳仟捌佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٢٨٤٢ Devanagari १०२२८४२ Bengali ১০২২৮৪২ Tamil ௧௦௨௨௮௪௨ Thai ๑๐๒๒๘๔๒ Tibetan ༡༠༢༢༨༤༢ Khmer ១០២២៨៤២ Lao ໑໐໒໒໘໔໒ Burmese ၁၀၂၂၈၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022842, here are decompositions:

  • 5 + 1022837 = 1022842
  • 113 + 1022729 = 1022842
  • 251 + 1022591 = 1022842
  • 269 + 1022573 = 1022842
  • 311 + 1022531 = 1022842
  • 461 + 1022381 = 1022842
  • 593 + 1022249 = 1022842
  • 599 + 1022243 = 1022842

Showing the first eight; more decompositions exist.

Hex color
#0F9B7A
RGB(15, 155, 122)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.155.122.

Address
0.15.155.122
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.155.122

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 2842 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2842-02-01 (DMMYYYY (Euro, single-digit day))
  • 2842-10-02 (MMDYYYY (US, single-digit day))
  • 2842-02-10 (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 1,022,842 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°.