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1,045,742

1,045,742 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.).

1,045,742 (one million forty-five thousand seven hundred forty-two) is an even 7-digit number. It is a composite number with 4 divisors, and factors as 2 × 522,871. Written other ways, in hexadecimal, 0xFF4EE.

Arithmetic Number Cube-Free Deficient Number Odious Number Semiprime Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
2,475,401
Square (n²)
1,093,576,330,564
Cube (n³)
1,143,598,699,076,658,488
Divisor count
4
σ(n) — sum of divisors
1,568,616
φ(n) — Euler's totient
522,870
Sum of prime factors
522,873

Primality

Prime factorization: 2 × 522871

Nearest primes: 1,045,739 (−3) · 1,045,763 (+21)

Divisors & multiples

All divisors (4)
1 · 2 · 522871 (half) · 1045742
Aliquot sum (sum of proper divisors): 522,874
Factor pairs (a × b = 1,045,742)
1 × 1045742
2 × 522871
First multiples
1,045,742 · 2,091,484 (double) · 3,137,226 · 4,182,968 · 5,228,710 · 6,274,452 · 7,320,194 · 8,365,936 · 9,411,678 · 10,457,420

Sums & aliquot sequence

As consecutive integers: 261,434 + 261,435 + 261,436 + 261,437
Aliquot sequence: 1,045,742 522,874 332,774 204,826 109,094 54,550 47,006 27,274 16,826 9,094 4,550 5,866 4,214 3,310 2,666 1,558 962 — unresolved within range

Continued fraction of √n

√1,045,742 = [1022; (1, 1, 1, 1, 2, 53, 2, 3, 2, 14, 1, 4, 1, 2, 1, 2, 2, 2, 2, 1, 5, 4, 1, 8, …)]

Representations

In words
one million forty-five thousand seven hundred forty-two
Ordinal
1045742nd
Binary
11111111010011101110
Octal
3772356
Hexadecimal
0xFF4EE
Base64
D/Tu
One's complement
4,293,921,553 (32-bit)
Scientific notation
1.045742 × 10⁶
As a duration
1,045,742 s = 12 days, 2 hours, 29 minutes, 2 seconds
In other bases
ternary (3) 1222010111012
quaternary (4) 3333103232
quinary (5) 231430432
senary (6) 34225222
septenary (7) 11613545
nonary (9) 1863435
undecimal (11) 654755
duodecimal (12) 425212
tridecimal (13) 2a7ca9
tetradecimal (14) 1d315c
pentadecimal (15) 159cb2

As an angle

1,045,742° = 2,904 × 360° + 302°
302° ≈ 5.271 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬五千七百四十二
Chinese (financial)
壹佰零肆萬伍仟柒佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٤٥٧٤٢ Devanagari १०४५७४२ Bengali ১০৪৫৭৪২ Tamil ௧௦௪௫௭௪௨ Thai ๑๐๔๕๗๔๒ Tibetan ༡༠༤༥༧༤༢ Khmer ១០៤៥៧៤២ Lao ໑໐໔໕໗໔໒ Burmese ၁၀၄၅၇၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1045742, here are decompositions:

  • 3 + 1045739 = 1045742
  • 13 + 1045729 = 1045742
  • 79 + 1045663 = 1045742
  • 109 + 1045633 = 1045742
  • 193 + 1045549 = 1045742
  • 199 + 1045543 = 1045742
  • 331 + 1045411 = 1045742
  • 349 + 1045393 = 1045742

Showing the first eight; more decompositions exist.

Hex color
#0FF4EE
RGB(15, 244, 238)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.244.238.

Address
0.15.244.238
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.244.238

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 4, 5742 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5742-04-01 (DMMYYYY (Euro, single-digit day))
  • 5742-10-04 (MMDYYYY (US, single-digit day))
  • 5742-04-10 (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 1,045,742 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°.