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1,045,842

1,045,842 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.).

1,045,842 (one million forty-five thousand eight hundred forty-two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 7 × 37 × 673. Its proper divisors sum to 1,412,910, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFF552.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Practical Number 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
2,485,401
Square (n²)
1,093,785,488,964
Cube (n³)
1,143,926,803,349,087,688
Divisor count
32
σ(n) — sum of divisors
2,458,752
φ(n) — Euler's totient
290,304
Sum of prime factors
722

Primality

Prime factorization: 2 × 3 × 7 × 37 × 673

Nearest primes: 1,045,841 (−1) · 1,045,859 (+17)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 6 · 7 · 14 · 21 · 37 · 42 · 74 · 111 · 222 · 259 · 518 · 673 · 777 · 1346 · 1554 · 2019 · 4038 · 4711 · 9422 · 14133 · 24901 · 28266 · 49802 · 74703 · 149406 · 174307 · 348614 · 522921 (half) · 1045842
Aliquot sum (sum of proper divisors): 1,412,910
Factor pairs (a × b = 1,045,842)
1 × 1045842
2 × 522921
3 × 348614
6 × 174307
7 × 149406
14 × 74703
21 × 49802
37 × 28266
42 × 24901
74 × 14133
111 × 9422
222 × 4711
259 × 4038
518 × 2019
673 × 1554
777 × 1346
First multiples
1,045,842 · 2,091,684 (double) · 3,137,526 · 4,183,368 · 5,229,210 · 6,275,052 · 7,320,894 · 8,366,736 · 9,412,578 · 10,458,420

Sums & aliquot sequence

As consecutive integers: 348,613 + 348,614 + 348,615 261,459 + 261,460 + 261,461 + 261,462 149,403 + 149,404 + … + 149,409 87,148 + 87,149 + … + 87,159
Aliquot sequence: 1,045,842 1,412,910 2,355,570 4,645,710 7,737,570 12,550,230 28,154,538 33,073,590 59,491,914 63,330,486 69,459,402 86,060,598 99,300,858 101,230,278 102,003,258 131,147,142 168,617,850 — unresolved within range

Continued fraction of √n

√1,045,842 = [1022; (1, 1, 1, 43, 1, 3, 1, 12, 1, 2, 1, 15, 2, 1, 3, 1, 1, 3, 12, 1, 1, 2, 1, 1, …)]

Period length 44 — the block in parentheses repeats forever.

Representations

In words
one million forty-five thousand eight hundred forty-two
Ordinal
1045842nd
Binary
11111111010101010010
Octal
3772522
Hexadecimal
0xFF552
Base64
D/VS
One's complement
4,293,921,453 (32-bit)
Scientific notation
1.045842 × 10⁶
As a duration
1,045,842 s = 12 days, 2 hours, 30 minutes, 42 seconds
In other bases
ternary (3) 1222010121220
quaternary (4) 3333111102
quinary (5) 231431332
senary (6) 34225510
septenary (7) 11614050
nonary (9) 1863556
undecimal (11) 654836
duodecimal (12) 425296
tridecimal (13) 2a8055
tetradecimal (14) 1d31d0
pentadecimal (15) 159d2c

As an angle

1,045,842° = 2,905 × 360° + 42°
42° ≈ 0.733 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬五千八百四十二
Chinese (financial)
壹佰零肆萬伍仟捌佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٤٥٨٤٢ Devanagari १०४५८४२ Bengali ১০৪৫৮৪২ Tamil ௧௦௪௫௮௪௨ Thai ๑๐๔๕๘๔๒ Tibetan ༡༠༤༥༨༤༢ Khmer ១០៤៥៨៤២ Lao ໑໐໔໕໘໔໒ Burmese ၁၀၄၅၈၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1045842, here are decompositions:

  • 13 + 1045829 = 1045842
  • 23 + 1045819 = 1045842
  • 41 + 1045801 = 1045842
  • 43 + 1045799 = 1045842
  • 79 + 1045763 = 1045842
  • 103 + 1045739 = 1045842
  • 113 + 1045729 = 1045842
  • 151 + 1045691 = 1045842

Showing the first eight; more decompositions exist.

Hex color
#0FF552
RGB(15, 245, 82)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.245.82.

Address
0.15.245.82
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.245.82

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 4, 5842 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5842-04-01 (DMMYYYY (Euro, single-digit day))
  • 5842-10-04 (MMDYYYY (US, single-digit day))
  • 5842-04-10 (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 1,045,842 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°.