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1,055,820

1,055,820 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.).

1,055,820 (one million fifty-five thousand eight hundred twenty) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 5 × 17,597. Its proper divisors sum to 1,900,644, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x101C4C.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
21 bits
Reversed
285,501
Square (n²)
1,114,755,872,400
Cube (n³)
1,176,981,545,197,368,000
Divisor count
24
σ(n) — sum of divisors
2,956,464
φ(n) — Euler's totient
281,536
Sum of prime factors
17,609

Primality

Prime factorization: 2 2 × 3 × 5 × 17597

Nearest primes: 1,055,809 (−11) · 1,055,827 (+7)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 5 · 6 · 10 · 12 · 15 · 20 · 30 · 60 · 17597 · 35194 · 52791 · 70388 · 87985 · 105582 · 175970 · 211164 · 263955 · 351940 · 527910 (half) · 1055820
Aliquot sum (sum of proper divisors): 1,900,644
Factor pairs (a × b = 1,055,820)
1 × 1055820
2 × 527910
3 × 351940
4 × 263955
5 × 211164
6 × 175970
10 × 105582
12 × 87985
15 × 70388
20 × 52791
30 × 35194
60 × 17597
First multiples
1,055,820 · 2,111,640 (double) · 3,167,460 · 4,223,280 · 5,279,100 · 6,334,920 · 7,390,740 · 8,446,560 · 9,502,380 · 10,558,200

Sums & aliquot sequence

As consecutive integers: 351,939 + 351,940 + 351,941 211,162 + 211,163 + 211,164 + 211,165 + 211,166 131,974 + 131,975 + … + 131,981 70,381 + 70,382 + … + 70,395
Aliquot sequence: 1,055,820 → 1,900,644 → 2,568,156 → 3,777,204 → 5,204,076 → 6,938,796 → 9,659,996 → 7,245,004 → 7,129,636 → 6,004,044 → 10,522,116 → 21,048,444 → 34,234,756 → 25,676,074 → 13,733,846 → 11,049,514 → 7,892,534 — unresolved within range

Continued fraction of √n

√1,055,820 = [1027; (1, 1, 7, 1, 1, 3, 1, 2, 1, 6, 2, 1, 1, 1, 28, 3, 6, 1, 1, 1, 1, 2, 2, 2, …)]

Representations

In words
one million fifty-five thousand eight hundred twenty
Ordinal
1055820th
Binary
100000001110001001100
Octal
4016114
Hexadecimal
0x101C4C
Base64
EBxM
One's complement
4,293,911,475 (32-bit)
Scientific notation
1.05582 × 10⁶
As a duration
1,055,820 s = 12 days, 5 hours, 17 minutes
In other bases
ternary (3) 1222122022110
quaternary (4) 10001301030
quinary (5) 232241240
senary (6) 34344020
septenary (7) 11655123
nonary (9) 1878273
undecimal (11) 661287
duodecimal (12) 42b010
tridecimal (13) 2ac75c
tetradecimal (14) 1d6aba
pentadecimal (15) 15cc80

As an angle

1,055,820° = 2,932 × 360° + 300°
300° ≈ 5.236 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零五萬五千八百二十
Chinese (financial)
壹佰零伍萬伍仟捌佰貳拾
In other modern scripts
Eastern Arabic ١٠٥٥٨٢٠ Devanagari १०५५८२० Bengali ১০৫৫৮২০ Tamil ௧௦௫௫௮௨௦ Thai ๑๐๕๕๘๒๐ Tibetan ༡༠༥༥༨༢༠ Khmer ១០៥៥៨២០ Lao ໑໐໕໕໘໒໐ Burmese ၁၀၅၅၈၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055820, here are decompositions:

  • 11 + 1055809 = 1055820
  • 19 + 1055801 = 1055820
  • 37 + 1055783 = 1055820
  • 79 + 1055741 = 1055820
  • 83 + 1055737 = 1055820
  • 89 + 1055731 = 1055820
  • 107 + 1055713 = 1055820
  • 131 + 1055689 = 1055820

Showing the first eight; more decompositions exist.

Hex color
#101C4C
RGB(16, 28, 76)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.28.76.

Address
0.16.28.76
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.28.76

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 5, 5820 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5820-05-01 (DMMYYYY (Euro, single-digit day))
  • 5820-10-05 (MMDYYYY (US, single-digit day))
  • 5820-05-10 (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 1,055,820 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°.