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1,057,220

1,057,220 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.).

1,057,220 (one million fifty-seven thousand two hundred twenty) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 52,861. Its proper divisors sum to 1,162,984, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1021C4.

Abundant Number Arithmetic Number Cube-Free Evil Number Gapful Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
21 bits
Reversed
227,501
Square (n²)
1,117,714,128,400
Cube (n³)
1,181,669,730,827,048,000
Divisor count
12
σ(n) — sum of divisors
2,220,204
φ(n) — Euler's totient
422,880
Sum of prime factors
52,870

Primality

Prime factorization: 2 2 × 5 × 52861

Nearest primes: 1,057,219 (−1) · 1,057,223 (+3)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 52861 · 105722 · 211444 · 264305 · 528610 (half) · 1057220
Aliquot sum (sum of proper divisors): 1,162,984
Factor pairs (a × b = 1,057,220)
1 × 1057220
2 × 528610
4 × 264305
5 × 211444
10 × 105722
20 × 52861
First multiples
1,057,220 · 2,114,440 (double) · 3,171,660 · 4,228,880 · 5,286,100 · 6,343,320 · 7,400,540 · 8,457,760 · 9,514,980 · 10,572,200

Sums & aliquot sequence

As a sum of two squares: 158² + 1,016² = 718² + 736²
As consecutive integers: 211,442 + 211,443 + 211,444 + 211,445 + 211,446 132,149 + 132,150 + … + 132,156 26,411 + 26,412 + … + 26,450
Aliquot sequence: 1,057,220 → 1,162,984 → 1,077,116 → 825,316 → 739,604 → 554,710 → 588,362 → 294,184 → 307,736 → 372,664 → 345,536 → 340,264 → 297,746 → 148,876 → 172,564 → 172,620 → 430,164 — unresolved within range

Continued fraction of √n

√1,057,220 = [1028; (4, 1, 2, 1, 1, 10, 1, 3, 1, 1, 1, 410, 1, 1, 1, 3, 1, 10, 1, 1, 2, 1, 4, 2056)]

Period length 24 — the block in parentheses repeats forever.

Representations

In words
one million fifty-seven thousand two hundred twenty
Ordinal
1057220th
Binary
100000010000111000100
Octal
4020704
Hexadecimal
0x1021C4
Base64
ECHE
One's complement
4,293,910,075 (32-bit)
Scientific notation
1.05722 × 10⁶
As a duration
1,057,220 s = 12 days, 5 hours, 40 minutes, 20 seconds
In other bases
ternary (3) 1222201020022
quaternary (4) 10002013010
quinary (5) 232312340
senary (6) 34354312
septenary (7) 11662163
nonary (9) 1881208
undecimal (11) 66233a
duodecimal (12) 42b998
tridecimal (13) 2b0298
tetradecimal (14) 1d73da
pentadecimal (15) 15d3b5

As an angle

1,057,220° = 2,936 × 360° + 260°
260° ≈ 4.538 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆
Chinese
一百零五萬七千二百二十
Chinese (financial)
壹佰零伍萬柒仟貳佰貳拾
In other modern scripts
Eastern Arabic ١٠٥٧٢٢٠ Devanagari १०५७२२० Bengali ১০৫৭২২০ Tamil ௧௦௫௭௨௨௦ Thai ๑๐๕๗๒๒๐ Tibetan ༡༠༥༧༢༢༠ Khmer ១០៥៧២២០ Lao ໑໐໕໗໒໒໐ Burmese ၁၀၅၇၂၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1057220, here are decompositions:

  • 37 + 1057183 = 1057220
  • 103 + 1057117 = 1057220
  • 127 + 1057093 = 1057220
  • 271 + 1056949 = 1057220
  • 349 + 1056871 = 1057220
  • 397 + 1056823 = 1057220
  • 499 + 1056721 = 1057220
  • 607 + 1056613 = 1057220

Showing the first eight; more decompositions exist.

Hex color
#1021C4
RGB(16, 33, 196)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.33.196.

Address
0.16.33.196
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.33.196

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 5, 7220 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7220-05-01 (DMMYYYY (Euro, single-digit day))
  • 7220-10-05 (MMDYYYY (US, single-digit day))
  • 7220-05-10 (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 1,057,220 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°.