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1,055,390

1,055,390 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.).

1,055,390 (one million fifty-five thousand three hundred ninety) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 7 × 15,077. Its proper divisors sum to 1,115,842, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x101A9E.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Squarefree Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
21 bits
Reversed
935,501
Square (n²)
1,113,848,052,100
Cube (n³)
1,175,544,095,705,819,000
Divisor count
16
σ(n) — sum of divisors
2,171,232
φ(n) — Euler's totient
361,824
Sum of prime factors
15,091

Primality

Prime factorization: 2 × 5 × 7 × 15077

Nearest primes: 1,055,387 (−3) · 1,055,399 (+9)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 7 · 10 · 14 · 35 · 70 · 15077 · 30154 · 75385 · 105539 · 150770 · 211078 · 527695 (half) · 1055390
Aliquot sum (sum of proper divisors): 1,115,842
Factor pairs (a × b = 1,055,390)
1 × 1055390
2 × 527695
5 × 211078
7 × 150770
10 × 105539
14 × 75385
35 × 30154
70 × 15077
First multiples
1,055,390 · 2,110,780 (double) · 3,166,170 · 4,221,560 · 5,276,950 · 6,332,340 · 7,387,730 · 8,443,120 · 9,498,510 · 10,553,900

Sums & aliquot sequence

As consecutive integers: 263,846 + 263,847 + 263,848 + 263,849 211,076 + 211,077 + 211,078 + 211,079 + 211,080 150,767 + 150,768 + … + 150,773 52,760 + 52,761 + … + 52,779
Aliquot sequence: 1,055,390 → 1,115,842 → 944,510 → 1,032,322 → 516,164 → 469,324 → 352,000 → 604,592 → 608,128 → 603,632 → 604,624 → 681,008 → 682,000 → 1,175,024 → 1,301,008 → 1,405,168 → 1,406,160 — unresolved within range

Continued fraction of √n

√1,055,390 = [1027; (3, 9, 3, 1, 2, 1, 2, 1, 204, 1, 2, 1, 2, 1, 3, 9, 3, 2054)]

Period length 18 — the block in parentheses repeats forever.

Representations

In words
one million fifty-five thousand three hundred ninety
Ordinal
1055390th
Binary
100000001101010011110
Octal
4015236
Hexadecimal
0x101A9E
Base64
EBqe
One's complement
4,293,911,905 (32-bit)
Scientific notation
1.05539 × 10⁶
As a duration
1,055,390 s = 12 days, 5 hours, 9 minutes, 50 seconds
In other bases
ternary (3) 1222121201112
quaternary (4) 10001222132
quinary (5) 232233030
senary (6) 34342022
septenary (7) 11653640
nonary (9) 1877645
undecimal (11) 660a26
duodecimal (12) 42a912
tridecimal (13) 2ac4bb
tetradecimal (14) 1d6890
pentadecimal (15) 15ca95

As an angle

1,055,390° = 2,931 × 360° + 230°
230° ≈ 4.014 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零五萬五千三百九十
Chinese (financial)
壹佰零伍萬伍仟參佰玖拾
In other modern scripts
Eastern Arabic ١٠٥٥٣٩٠ Devanagari १०५५३९० Bengali ১০৫৫৩৯০ Tamil ௧௦௫௫௩௯௦ Thai ๑๐๕๕๓๙๐ Tibetan ༡༠༥༥༣༩༠ Khmer ១០៥៥៣៩០ Lao ໑໐໕໕໓໙໐ Burmese ၁၀၅၅၃၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055390, here are decompositions:

  • 3 + 1055387 = 1055390
  • 19 + 1055371 = 1055390
  • 31 + 1055359 = 1055390
  • 43 + 1055347 = 1055390
  • 139 + 1055251 = 1055390
  • 157 + 1055233 = 1055390
  • 199 + 1055191 = 1055390
  • 223 + 1055167 = 1055390

Showing the first eight; more decompositions exist.

Hex color
#101A9E
RGB(16, 26, 158)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.26.158.

Address
0.16.26.158
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.26.158

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 5, 5390 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5390-05-01 (DMMYYYY (Euro, single-digit day))
  • 5390-10-05 (MMDYYYY (US, single-digit day))
  • 5390-05-10 (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 1,055,390 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°.