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1,056,640

1,056,640 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.).

1,056,640 (one million fifty-six thousand six hundred forty) is an even 7-digit number. It is a composite number with 64 divisors, and factors as 2⁷ × 5 × 13 × 127. Its proper divisors sum to 1,685,120, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x101F80.

Abundant Number Arithmetic Number Gapful Number Odious Number Pernicious Number Practical Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
21 bits
Reversed
466,501
Square (n²)
1,116,488,089,600
Cube (n³)
1,179,725,974,994,944,000
Divisor count
64
σ(n) — sum of divisors
2,741,760
φ(n) — Euler's totient
387,072
Sum of prime factors
159

Primality

Prime factorization: 2 7 × 5 × 13 × 127

Nearest primes: 1,056,623 (−17) · 1,056,641 (+1)

Divisors & multiples

All divisors (64)
1 · 2 · 4 · 5 · 8 · 10 · 13 · 16 · 20 · 26 · 32 · 40 · 52 · 64 · 65 · 80 · 104 · 127 · 128 · 130 · 160 · 208 · 254 · 260 · 320 · 416 · 508 · 520 · 635 · 640 · 832 · 1016 · 1040 · 1270 · 1651 · 1664 · 2032 · 2080 · 2540 · 3302 · 4064 · 4160 · 5080 · 6604 · 8128 · 8255 · 8320 · 10160 · 13208 · 16256 · 16510 · 20320 · 26416 · 33020 · 40640 · 52832 · 66040 · 81280 · 105664 · 132080 · 211328 · 264160 · 528320 (half) · 1056640
Aliquot sum (sum of proper divisors): 1,685,120
Factor pairs (a × b = 1,056,640)
1 × 1056640
2 × 528320
4 × 264160
5 × 211328
8 × 132080
10 × 105664
13 × 81280
16 × 66040
20 × 52832
26 × 40640
32 × 33020
40 × 26416
52 × 20320
64 × 16510
65 × 16256
80 × 13208
104 × 10160
127 × 8320
128 × 8255
130 × 8128
160 × 6604
208 × 5080
254 × 4160
260 × 4064
320 × 3302
416 × 2540
508 × 2080
520 × 2032
635 × 1664
640 × 1651
832 × 1270
1016 × 1040
First multiples
1,056,640 · 2,113,280 (double) · 3,169,920 · 4,226,560 · 5,283,200 · 6,339,840 · 7,396,480 · 8,453,120 · 9,509,760 · 10,566,400

Sums & aliquot sequence

As consecutive integers: 211,326 + 211,327 + 211,328 + 211,329 + 211,330 81,274 + 81,275 + … + 81,286 16,224 + 16,225 + … + 16,288 8,257 + 8,258 + … + 8,383
Aliquot sequence: 1,056,640 → 1,685,120 → 2,344,900 → 2,811,020 → 3,092,164 → 2,797,076 → 2,310,796 → 1,779,164 → 1,334,380 → 1,494,068 → 1,120,558 → 569,570 → 455,674 → 244,634 → 154,660 → 228,380 → 277,300 — unresolved within range

Continued fraction of √n

√1,056,640 = [1027; (1, 13, 3, 1, 1, 1, 1, 5, 1, 2, 1, 3, 4, 10, 3, 1, 12, 2, 2, 1, 2, 1, 2, 1, …)]

Representations

In words
one million fifty-six thousand six hundred forty
Ordinal
1056640th
Binary
100000001111110000000
Octal
4017600
Hexadecimal
0x101F80
Base64
EB+A
One's complement
4,293,910,655 (32-bit)
Scientific notation
1.05664 × 10⁶
As a duration
1,056,640 s = 12 days, 5 hours, 30 minutes, 40 seconds
In other bases
ternary (3) 1222200102211
quaternary (4) 10001332000
quinary (5) 232303030
senary (6) 34351504
septenary (7) 11660404
nonary (9) 1880384
undecimal (11) 661962
duodecimal (12) 42b594
tridecimal (13) 2acc40
tetradecimal (14) 1d7104
pentadecimal (15) 15d12a

As an angle

1,056,640° = 2,935 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Chinese
一百零五萬六千六百四十
Chinese (financial)
壹佰零伍萬陸仟陸佰肆拾
In other modern scripts
Eastern Arabic ١٠٥٦٦٤٠ Devanagari १०५६६४० Bengali ১০৫৬৬৪০ Tamil ௧௦௫௬௬௪௦ Thai ๑๐๕๖๖๔๐ Tibetan ༡༠༥༦༦༤༠ Khmer ១០៥៦៦៤០ Lao ໑໐໕໖໖໔໐ Burmese ၁၀၅၆၆၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1056640, here are decompositions:

  • 17 + 1056623 = 1056640
  • 23 + 1056617 = 1056640
  • 41 + 1056599 = 1056640
  • 71 + 1056569 = 1056640
  • 131 + 1056509 = 1056640
  • 197 + 1056443 = 1056640
  • 239 + 1056401 = 1056640
  • 269 + 1056371 = 1056640

Showing the first eight; more decompositions exist.

Hex color
#101F80
RGB(16, 31, 128)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.31.128.

Address
0.16.31.128
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.31.128

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 5, 6640 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 6640-05-01 (DMMYYYY (Euro, single-digit day))
  • 6640-10-05 (MMDYYYY (US, single-digit day))
  • 6640-05-10 (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 1,056,640 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°.