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1,049,142

1,049,142 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.).

1,049,142 (one million forty-nine thousand one hundred forty-two) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 19 × 9,203. Its proper divisors sum to 1,159,818, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x100236.

Abundant Number Arithmetic Number Cube-Free Evil Number Semiperfect Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
21 bits
Reversed
2,419,401
Square (n²)
1,100,698,936,164
Cube (n³)
1,154,789,483,284,971,288
Divisor count
16
σ(n) — sum of divisors
2,208,960
φ(n) — Euler's totient
331,272
Sum of prime factors
9,227

Primality

Prime factorization: 2 × 3 × 19 × 9203

Nearest primes: 1,049,141 (−1) · 1,049,143 (+1)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 6 · 19 · 38 · 57 · 114 · 9203 · 18406 · 27609 · 55218 · 174857 · 349714 · 524571 (half) · 1049142
Aliquot sum (sum of proper divisors): 1,159,818
Factor pairs (a × b = 1,049,142)
1 × 1049142
2 × 524571
3 × 349714
6 × 174857
19 × 55218
38 × 27609
57 × 18406
114 × 9203
First multiples
1,049,142 · 2,098,284 (double) · 3,147,426 · 4,196,568 · 5,245,710 · 6,294,852 · 7,343,994 · 8,393,136 · 9,442,278 · 10,491,420

Sums & aliquot sequence

As consecutive integers: 349,713 + 349,714 + 349,715 262,284 + 262,285 + 262,286 + 262,287 87,423 + 87,424 + … + 87,434 55,209 + 55,210 + … + 55,227
Aliquot sequence: 1,049,142 1,159,818 1,370,838 1,799,466 1,812,918 1,881,978 2,419,782 2,636,346 2,655,654 2,655,666 3,854,376 7,602,264 14,201,856 29,227,296 66,766,560 181,733,664 363,469,344 — unresolved within range

Continued fraction of √n

√1,049,142 = [1024; (3, 1, 1, 1, 1, 1, 1, 1, 11, 1, 1, 1, 5, 2, 2, 12, 6, 4, 1, 11, 3, 5, 1, 4, …)]

Period length 54 — the block in parentheses repeats forever.

Representations

In words
one million forty-nine thousand one hundred forty-two
Ordinal
1049142nd
Binary
100000000001000110110
Octal
4001066
Hexadecimal
0x100236
Base64
EAI2
One's complement
4,293,918,153 (32-bit)
Scientific notation
1.049142 × 10⁶
As a duration
1,049,142 s = 12 days, 3 hours, 25 minutes, 42 seconds
In other bases
ternary (3) 1222022011010
quaternary (4) 10000020312
quinary (5) 232033032
senary (6) 34253050
septenary (7) 11626503
nonary (9) 1868133
undecimal (11) 657266
duodecimal (12) 427186
tridecimal (13) 2a96c3
tetradecimal (14) 1d44aa
pentadecimal (15) 15accc

As an angle

1,049,142° = 2,914 × 360° + 102°
102° ≈ 1.78 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬九千一百四十二
Chinese (financial)
壹佰零肆萬玖仟壹佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٤٩١٤٢ Devanagari १०४९१४२ Bengali ১০৪৯১৪২ Tamil ௧௦௪௯௧௪௨ Thai ๑๐๔๙๑๔๒ Tibetan ༡༠༤༩༡༤༢ Khmer ១០៤៩១៤២ Lao ໑໐໔໙໑໔໒ Burmese ၁၀၄၉၁၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1049142, here are decompositions:

  • 5 + 1049137 = 1049142
  • 11 + 1049131 = 1049142
  • 13 + 1049129 = 1049142
  • 41 + 1049101 = 1049142
  • 53 + 1049089 = 1049142
  • 79 + 1049063 = 1049142
  • 103 + 1049039 = 1049142
  • 131 + 1049011 = 1049142

Showing the first eight; more decompositions exist.

Hex color
#100236
RGB(16, 2, 54)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.2.54.

Address
0.16.2.54
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.2.54

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 4, 9142 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 9142-04-01 (DMMYYYY (Euro, single-digit day))
  • 9142-10-04 (MMDYYYY (US, single-digit day))
  • 9142-04-10 (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 1,049,142 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°.