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1,009,842

1,009,842 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.).

1,009,842 (one million nine thousand eight hundred forty-two) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 47 × 3,581. Its proper divisors sum to 1,053,390, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF68B2.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Recamán's Sequence Semiperfect Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
24
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
2,489,001
Recamán's sequence
a(352,667) = 1,009,842
Square (n²)
1,019,780,864,964
Cube (n³)
1,029,817,548,236,975,688
Divisor count
16
σ(n) — sum of divisors
2,063,232
φ(n) — Euler's totient
329,360
Sum of prime factors
3,633

Primality

Prime factorization: 2 × 3 × 47 × 3581

Nearest primes: 1,009,837 (−5) · 1,009,843 (+1)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 6 · 47 · 94 · 141 · 282 · 3581 · 7162 · 10743 · 21486 · 168307 · 336614 · 504921 (half) · 1009842
Aliquot sum (sum of proper divisors): 1,053,390
Factor pairs (a × b = 1,009,842)
1 × 1009842
2 × 504921
3 × 336614
6 × 168307
47 × 21486
94 × 10743
141 × 7162
282 × 3581
First multiples
1,009,842 · 2,019,684 (double) · 3,029,526 · 4,039,368 · 5,049,210 · 6,059,052 · 7,068,894 · 8,078,736 · 9,088,578 · 10,098,420

Sums & aliquot sequence

As consecutive integers: 336,613 + 336,614 + 336,615 252,459 + 252,460 + 252,461 + 252,462 84,148 + 84,149 + … + 84,159 21,463 + 21,464 + … + 21,509
Aliquot sequence: 1,009,842 1,053,390 1,781,106 1,961,742 2,185,458 2,582,958 3,395,922 3,680,238 3,754,338 4,954,782 7,193,058 7,950,462 9,173,778 10,253,262 11,312,178 11,312,190 18,854,370 — unresolved within range

Continued fraction of √n

√1,009,842 = [1004; (1, 9, 1, 58, 4, 1, 11, 1, 2, 6, 1, 1, 1, 1, 2, 1, 2, 3, 1, 2, 60, 1, 1, 5, …)]

Representations

In words
one million nine thousand eight hundred forty-two
Ordinal
1009842nd
Binary
11110110100010110010
Octal
3664262
Hexadecimal
0xF68B2
Base64
D2iy
One's complement
4,293,957,453 (32-bit)
Scientific notation
1.009842 × 10⁶
As a duration
1,009,842 s = 11 days, 16 hours, 30 minutes, 42 seconds
In other bases
ternary (3) 1220022020120
quaternary (4) 3312202302
quinary (5) 224303332
senary (6) 33351110
septenary (7) 11404101
nonary (9) 1808216
undecimal (11) 62a789
duodecimal (12) 408496
tridecimal (13) 294852
tetradecimal (14) 1c4038
pentadecimal (15) 14e32c

As an angle

1,009,842° = 2,805 × 360° + 42°
42° ≈ 0.733 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百萬九千八百四十二
Chinese (financial)
壹佰萬玖仟捌佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٠٩٨٤٢ Devanagari १००९८४२ Bengali ১০০৯৮৪২ Tamil ௧௦௦௯௮௪௨ Thai ๑๐๐๙๘๔๒ Tibetan ༡༠༠༩༨༤༢ Khmer ១០០៩៨៤២ Lao ໑໐໐໙໘໔໒ Burmese ၁၀၀၉၈၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009842, here are decompositions:

  • 5 + 1009837 = 1009842
  • 23 + 1009819 = 1009842
  • 61 + 1009781 = 1009842
  • 101 + 1009741 = 1009842
  • 173 + 1009669 = 1009842
  • 191 + 1009651 = 1009842
  • 193 + 1009649 = 1009842
  • 199 + 1009643 = 1009842

Showing the first eight; more decompositions exist.

Hex color
#0F68B2
RGB(15, 104, 178)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.104.178.

Address
0.15.104.178
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.104.178

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

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 1,009,842 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°.