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1,055,642

1,055,642 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.).

1,055,642 (one million fifty-five thousand six hundred forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 7 × 75,403. Written other ways, in hexadecimal, 0x101B9A.

Arithmetic Number Cube-Free Deficient Number Odious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
21 bits
Reversed
2,465,501
Square (n²)
1,114,380,032,164
Cube (n³)
1,176,386,365,913,669,288
Divisor count
8
σ(n) — sum of divisors
1,809,696
φ(n) — Euler's totient
452,412
Sum of prime factors
75,412

Primality

Prime factorization: 2 × 7 × 75403

Nearest primes: 1,055,611 (−31) · 1,055,671 (+29)

Divisors & multiples

All divisors (8)
1 · 2 · 7 · 14 · 75403 · 150806 · 527821 (half) · 1055642
Aliquot sum (sum of proper divisors): 754,054
Factor pairs (a × b = 1,055,642)
1 × 1055642
2 × 527821
7 × 150806
14 × 75403
First multiples
1,055,642 · 2,111,284 (double) · 3,166,926 · 4,222,568 · 5,278,210 · 6,333,852 · 7,389,494 · 8,445,136 · 9,500,778 · 10,556,420

Sums & aliquot sequence

As consecutive integers: 263,909 + 263,910 + 263,911 + 263,912 150,803 + 150,804 + … + 150,809 37,688 + 37,689 + … + 37,715
Aliquot sequence: 1,055,642 → 754,054 → 538,634 → 269,320 → 336,740 → 381,460 → 419,648 → 433,792 → 430,658 → 215,332 → 204,500 → 243,220 → 267,584 → 282,580 → 322,220 → 354,484 → 354,644 — unresolved within range

Continued fraction of √n

√1,055,642 = [1027; (2, 3, 1, 292, 1, 3, 2, 2054)]

Period length 8 — the block in parentheses repeats forever.

Representations

In words
one million fifty-five thousand six hundred forty-two
Ordinal
1055642nd
Binary
100000001101110011010
Octal
4015632
Hexadecimal
0x101B9A
Base64
EBua
One's complement
4,293,911,653 (32-bit)
Scientific notation
1.055642 × 10⁶
As a duration
1,055,642 s = 12 days, 5 hours, 14 minutes, 2 seconds
In other bases
ternary (3) 1222122001212
quaternary (4) 10001232122
quinary (5) 232240032
senary (6) 34343122
septenary (7) 11654450
nonary (9) 1878055
undecimal (11) 661135
duodecimal (12) 42aaa2
tridecimal (13) 2ac653
tetradecimal (14) 1d69d0
pentadecimal (15) 15cbb2

As an angle

1,055,642° = 2,932 × 360° + 122°
122° ≈ 2.129 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零五萬五千六百四十二
Chinese (financial)
壹佰零伍萬伍仟陸佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٥٥٦٤٢ Devanagari १०५५६४२ Bengali ১০৫৫৬৪২ Tamil ௧௦௫௫௬௪௨ Thai ๑๐๕๕๖๔๒ Tibetan ༡༠༥༥༦༤༢ Khmer ១០៥៥៦៤២ Lao ໑໐໕໕໖໔໒ Burmese ၁၀၅၅၆၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055642, here are decompositions:

  • 31 + 1055611 = 1055642
  • 139 + 1055503 = 1055642
  • 229 + 1055413 = 1055642
  • 271 + 1055371 = 1055642
  • 283 + 1055359 = 1055642
  • 373 + 1055269 = 1055642
  • 409 + 1055233 = 1055642
  • 499 + 1055143 = 1055642

Showing the first eight; more decompositions exist.

Hex color
#101B9A
RGB(16, 27, 154)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.27.154.

Address
0.16.27.154
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.27.154

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 5, 5642 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5642-05-01 (DMMYYYY (Euro, single-digit day))
  • 5642-10-05 (MMDYYYY (US, single-digit day))
  • 5642-05-10 (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 1,055,642 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°.