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1,027,200

1,027,200 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.).

1,027,200 (one million twenty-seven thousand two hundred) is an even 7-digit number. It is a composite number with 96 divisors, and factors as 2⁷ × 3 × 5² × 107. Its proper divisors sum to 2,387,760, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFAC80.

Abundant Number Gapful Number Harshad / Niven Odious Number Practical Number Refactorable Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
27,201
Square (n²)
1,055,139,840,000
Cube (n³)
1,083,839,643,648,000,000
Divisor count
96
σ(n) — sum of divisors
3,414,960
φ(n) — Euler's totient
271,360
Sum of prime factors
134

Primality

Prime factorization: 2 7 × 3 × 5 2 × 107

Nearest primes: 1,027,199 (−1) · 1,027,207 (+7)

Divisors & multiples

All divisors (96)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 25 · 30 · 32 · 40 · 48 · 50 · 60 · 64 · 75 · 80 · 96 · 100 · 107 · 120 · 128 · 150 · 160 · 192 · 200 · 214 · 240 · 300 · 320 · 321 · 384 · 400 · 428 · 480 · 535 · 600 · 640 · 642 · 800 · 856 · 960 · 1070 · 1200 · 1284 · 1600 · 1605 · 1712 · 1920 · 2140 · 2400 · 2568 · 2675 · 3200 · 3210 · 3424 · 4280 · 4800 · 5136 · 5350 · 6420 · 6848 · 8025 · 8560 · 9600 · 10272 · 10700 · 12840 · 13696 · 16050 · 17120 · 20544 · 21400 · 25680 · 32100 · 34240 · 41088 · 42800 · 51360 · 64200 · 68480 · 85600 · 102720 · 128400 · 171200 · 205440 · 256800 · 342400 · 513600 (half) · 1027200
Aliquot sum (sum of proper divisors): 2,387,760
Factor pairs (a × b = 1,027,200)
1 × 1027200
2 × 513600
3 × 342400
4 × 256800
5 × 205440
6 × 171200
8 × 128400
10 × 102720
12 × 85600
15 × 68480
16 × 64200
20 × 51360
24 × 42800
25 × 41088
30 × 34240
32 × 32100
40 × 25680
48 × 21400
50 × 20544
60 × 17120
64 × 16050
75 × 13696
80 × 12840
96 × 10700
100 × 10272
107 × 9600
120 × 8560
128 × 8025
150 × 6848
160 × 6420
192 × 5350
200 × 5136
214 × 4800
240 × 4280
300 × 3424
320 × 3210
321 × 3200
384 × 2675
400 × 2568
428 × 2400
480 × 2140
535 × 1920
600 × 1712
640 × 1605
642 × 1600
800 × 1284
856 × 1200
960 × 1070
First multiples
1,027,200 · 2,054,400 (double) · 3,081,600 · 4,108,800 · 5,136,000 · 6,163,200 · 7,190,400 · 8,217,600 · 9,244,800 · 10,272,000

Sums & aliquot sequence

As consecutive integers: 342,399 + 342,400 + 342,401 205,438 + 205,439 + 205,440 + 205,441 + 205,442 68,473 + 68,474 + … + 68,487 41,076 + 41,077 + … + 41,100
Aliquot sequence: 1,027,200 2,387,760 5,015,040 11,041,968 22,170,192 40,921,008 64,791,720 180,227,340 371,826,708 581,815,212 899,169,300 2,067,619,980 3,724,003,284 4,986,087,756 7,714,716,948 13,130,654,508 — keeps growing

Continued fraction of √n

√1,027,200 = [1013; (1, 1, 28, 20, 4, 3, 1, 15, 1, 80, 7, 7, 1, 505, 1, 7, 7, 80, 1, 15, 1, 3, 4, 20, …)]

Period length 28 — the block in parentheses repeats forever.

Representations

In words
one million twenty-seven thousand two hundred
Ordinal
1027200th
Binary
11111010110010000000
Octal
3726200
Hexadecimal
0xFAC80
Base64
D6yA
One's complement
4,293,940,095 (32-bit)
Scientific notation
1.0272 × 10⁶
As a duration
1,027,200 s = 11 days, 21 hours, 20 minutes
In other bases
ternary (3) 1221012001110
quaternary (4) 3322302000
quinary (5) 230332300
senary (6) 34003320
septenary (7) 11505516
nonary (9) 1835043
undecimal (11) 641829
duodecimal (12) 416540
tridecimal (13) 29c715
tetradecimal (14) 1ca4b6
pentadecimal (15) 154550

As an angle

1,027,200° = 2,853 × 360° + 120°
120° ≈ 2.094 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢
Chinese
一百零二萬七千二百
Chinese (financial)
壹佰零貳萬柒仟貳佰
In other modern scripts
Eastern Arabic ١٠٢٧٢٠٠ Devanagari १०२७२०० Bengali ১০২৭২০০ Tamil ௧௦௨௭௨௦௦ Thai ๑๐๒๗๒๐๐ Tibetan ༡༠༢༧༢༠༠ Khmer ១០២៧២០០ Lao ໑໐໒໗໒໐໐ Burmese ၁၀၂၇၂၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1027200, here are decompositions:

  • 11 + 1027189 = 1027200
  • 19 + 1027181 = 1027200
  • 37 + 1027163 = 1027200
  • 47 + 1027153 = 1027200
  • 61 + 1027139 = 1027200
  • 71 + 1027129 = 1027200
  • 73 + 1027127 = 1027200
  • 103 + 1027097 = 1027200

Showing the first eight; more decompositions exist.

Hex color
#0FAC80
RGB(15, 172, 128)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.172.128.

Address
0.15.172.128
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.172.128

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 7200 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7200-02-01 (DMMYYYY (Euro, single-digit day))
  • 7200-10-02 (MMDYYYY (US, single-digit day))
  • 7200-02-10 (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 1,027,200 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°.