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1,055,990

1,055,990 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.).

1,055,990 (one million fifty-five thousand nine hundred ninety) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 13 × 8,123. Written other ways, in hexadecimal, 0x101CF6.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
29
Digit product
0
Digital root
2
Palindrome
No
Bit width
21 bits
Reversed
995,501
Square (n²)
1,115,114,880,100
Cube (n³)
1,177,550,162,236,799,000
Divisor count
16
σ(n) — sum of divisors
2,047,248
φ(n) — Euler's totient
389,856
Sum of prime factors
8,143

Primality

Prime factorization: 2 × 5 × 13 × 8123

Nearest primes: 1,055,981 (−9) · 1,056,007 (+17)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 10 · 13 · 26 · 65 · 130 · 8123 · 16246 · 40615 · 81230 · 105599 · 211198 · 527995 (half) · 1055990
Aliquot sum (sum of proper divisors): 991,258
Factor pairs (a × b = 1,055,990)
1 × 1055990
2 × 527995
5 × 211198
10 × 105599
13 × 81230
26 × 40615
65 × 16246
130 × 8123
First multiples
1,055,990 · 2,111,980 (double) · 3,167,970 · 4,223,960 · 5,279,950 · 6,335,940 · 7,391,930 · 8,447,920 · 9,503,910 · 10,559,900

Sums & aliquot sequence

As consecutive integers: 263,996 + 263,997 + 263,998 + 263,999 211,196 + 211,197 + 211,198 + 211,199 + 211,200 81,224 + 81,225 + … + 81,236 52,790 + 52,791 + … + 52,809
Aliquot sequence: 1,055,990 → 991,258 → 495,632 → 464,686 → 235,658 → 144,502 → 72,254 → 61,474 → 43,934 → 27,994 → 14,000 → 24,688 → 23,176 → 20,294 → 10,786 → 5,396 → 4,684 — unresolved within range

Continued fraction of √n

√1,055,990 = [1027; (1, 1, 1, 1, 2, 3, 4, 1, 1, 1, 10, 1, 2, 2, 5, 14, 1, 1, 1, 1, 25, 2, 2, 2, …)]

Representations

In words
one million fifty-five thousand nine hundred ninety
Ordinal
1055990th
Binary
100000001110011110110
Octal
4016366
Hexadecimal
0x101CF6
Base64
EBz2
One's complement
4,293,911,305 (32-bit)
Scientific notation
1.05599 × 10⁶
As a duration
1,055,990 s = 12 days, 5 hours, 19 minutes, 50 seconds
In other bases
ternary (3) 1222122112202
quaternary (4) 10001303312
quinary (5) 232242430
senary (6) 34344502
septenary (7) 11655455
nonary (9) 1878482
undecimal (11) 661421
duodecimal (12) 42b132
tridecimal (13) 2ac860
tetradecimal (14) 1d6b9c
pentadecimal (15) 15cd45

As an angle

1,055,990° = 2,933 × 360° + 110°
110° ≈ 1.92 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零五萬五千九百九十
Chinese (financial)
壹佰零伍萬伍仟玖佰玖拾
In other modern scripts
Eastern Arabic ١٠٥٥٩٩٠ Devanagari १०५५९९० Bengali ১০৫৫৯৯০ Tamil ௧௦௫௫௯௯௦ Thai ๑๐๕๕๙๙๐ Tibetan ༡༠༥༥༩༩༠ Khmer ១០៥៥៩៩០ Lao ໑໐໕໕໙໙໐ Burmese ၁၀၅၅၉၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055990, here are decompositions:

  • 31 + 1055959 = 1055990
  • 43 + 1055947 = 1055990
  • 73 + 1055917 = 1055990
  • 79 + 1055911 = 1055990
  • 97 + 1055893 = 1055990
  • 109 + 1055881 = 1055990
  • 127 + 1055863 = 1055990
  • 139 + 1055851 = 1055990

Showing the first eight; more decompositions exist.

Hex color
#101CF6
RGB(16, 28, 246)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.28.246.

Address
0.16.28.246
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.28.246

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 5, 5990 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5990-05-01 (DMMYYYY (Euro, single-digit day))
  • 5990-10-05 (MMDYYYY (US, single-digit day))
  • 5990-05-10 (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 1,055,990 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°.