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1,055,872

1,055,872 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.).

1,055,872 (one million fifty-five thousand eight hundred seventy-two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2⁷ × 73 × 113. Its proper divisors sum to 1,095,308, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x101C80.

Abundant Number Odious Number Pernicious Number Practical Number Refactorable Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
28
Digit product
0
Digital root
1
Palindrome
No
Bit width
21 bits
Reversed
2,785,501
Square (n²)
1,114,865,680,384
Cube (n³)
1,177,155,455,678,414,848
Divisor count
32
σ(n) — sum of divisors
2,151,180
φ(n) — Euler's totient
516,096
Sum of prime factors
200

Primality

Prime factorization: 2 7 × 73 × 113

Nearest primes: 1,055,867 (−5) · 1,055,881 (+9)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 8 · 16 · 32 · 64 · 73 · 113 · 128 · 146 · 226 · 292 · 452 · 584 · 904 · 1168 · 1808 · 2336 · 3616 · 4672 · 7232 · 8249 · 9344 · 14464 · 16498 · 32996 · 65992 · 131984 · 263968 · 527936 (half) · 1055872
Aliquot sum (sum of proper divisors): 1,095,308
Factor pairs (a × b = 1,055,872)
1 × 1055872
2 × 527936
4 × 263968
8 × 131984
16 × 65992
32 × 32996
64 × 16498
73 × 14464
113 × 9344
128 × 8249
146 × 7232
226 × 4672
292 × 3616
452 × 2336
584 × 1808
904 × 1168
First multiples
1,055,872 · 2,111,744 (double) · 3,167,616 · 4,223,488 · 5,279,360 · 6,335,232 · 7,391,104 · 8,446,976 · 9,502,848 · 10,558,720

Sums & aliquot sequence

As a sum of two squares: 296² + 984² = 424² + 936²
As consecutive integers: 14,428 + 14,429 + … + 14,500 9,288 + 9,289 + … + 9,400 3,997 + 3,998 + … + 4,252
Aliquot sequence: 1,055,872 → 1,095,308 → 821,488 → 770,176 → 906,704 → 880,756 → 660,574 → 330,290 → 264,250 → 304,838 → 152,422 → 89,714 → 49,294 → 36,890 → 46,054 → 23,030 → 26,218 — unresolved within range

Continued fraction of √n

√1,055,872 = [1027; (1, 1, 3, 1, 15, 3, 1, 1, 2, 513, 2, 1, 1, 3, 15, 1, 3, 1, 1, 2054)]

Period length 20 — the block in parentheses repeats forever.

Representations

In words
one million fifty-five thousand eight hundred seventy-two
Ordinal
1055872nd
Binary
100000001110010000000
Octal
4016200
Hexadecimal
0x101C80
Base64
EByA
One's complement
4,293,911,423 (32-bit)
Scientific notation
1.055872 × 10⁶
As a duration
1,055,872 s = 12 days, 5 hours, 17 minutes, 52 seconds
In other bases
ternary (3) 1222122101101
quaternary (4) 10001302000
quinary (5) 232241442
senary (6) 34344144
septenary (7) 11655226
nonary (9) 1878341
undecimal (11) 661324
duodecimal (12) 42b054
tridecimal (13) 2ac79c
tetradecimal (14) 1d6b16
pentadecimal (15) 15ccb7

As an angle

1,055,872° = 2,932 × 360° + 352°
352° ≈ 6.144 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零五萬五千八百七十二
Chinese (financial)
壹佰零伍萬伍仟捌佰柒拾貳
In other modern scripts
Eastern Arabic ١٠٥٥٨٧٢ Devanagari १०५५८७२ Bengali ১০৫৫৮৭২ Tamil ௧௦௫௫௮௭௨ Thai ๑๐๕๕๘๗๒ Tibetan ༡༠༥༥༨༧༢ Khmer ១០៥៥៨៧២ Lao ໑໐໕໕໘໗໒ Burmese ၁၀၅၅၈၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055872, here are decompositions:

  • 5 + 1055867 = 1055872
  • 71 + 1055801 = 1055872
  • 89 + 1055783 = 1055872
  • 101 + 1055771 = 1055872
  • 131 + 1055741 = 1055872
  • 263 + 1055609 = 1055872
  • 269 + 1055603 = 1055872
  • 281 + 1055591 = 1055872

Showing the first eight; more decompositions exist.

Hex color
#101C80
RGB(16, 28, 128)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.28.128.

Address
0.16.28.128
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.28.128

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 5, 5872 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5872-05-01 (DMMYYYY (Euro, single-digit day))
  • 5872-10-05 (MMDYYYY (US, single-digit day))
  • 5872-05-10 (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 1,055,872 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°.