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1,027,240

1,027,240 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.).

1,027,240 (one million twenty-seven thousand two hundred forty) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 61 × 421. Its proper divisors sum to 1,327,520, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFACA8.

Abundant Number Gapful Number Odious Number Pernicious Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
427,201
Square (n²)
1,055,222,017,600
Cube (n³)
1,083,966,265,359,424,000
Divisor count
32
σ(n) — sum of divisors
2,354,760
φ(n) — Euler's totient
403,200
Sum of prime factors
493

Primality

Prime factorization: 2 3 × 5 × 61 × 421

Nearest primes: 1,027,223 (−17) · 1,027,241 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 61 · 122 · 244 · 305 · 421 · 488 · 610 · 842 · 1220 · 1684 · 2105 · 2440 · 3368 · 4210 · 8420 · 16840 · 25681 · 51362 · 102724 · 128405 · 205448 · 256810 · 513620 (half) · 1027240
Aliquot sum (sum of proper divisors): 1,327,520
Factor pairs (a × b = 1,027,240)
1 × 1027240
2 × 513620
4 × 256810
5 × 205448
8 × 128405
10 × 102724
20 × 51362
40 × 25681
61 × 16840
122 × 8420
244 × 4210
305 × 3368
421 × 2440
488 × 2105
610 × 1684
842 × 1220
First multiples
1,027,240 · 2,054,480 (double) · 3,081,720 · 4,108,960 · 5,136,200 · 6,163,440 · 7,190,680 · 8,217,920 · 9,245,160 · 10,272,400

Sums & aliquot sequence

As a sum of two squares: 198² + 994² = 266² + 978² = 374² + 942² = 438² + 914²
As consecutive integers: 205,446 + 205,447 + 205,448 + 205,449 + 205,450 64,195 + 64,196 + … + 64,210 16,810 + 16,811 + … + 16,870 12,801 + 12,802 + … + 12,880
Aliquot sequence: 1,027,240 1,327,520 1,809,124 1,424,540 1,797,700 2,103,526 1,051,766 593,290 489,590 399,898 207,782 117,514 58,760 84,880 112,652 84,496 79,246 — unresolved within range

Continued fraction of √n

√1,027,240 = [1013; (1, 1, 8, 3, 1, 1, 1, 2, 1, 40, 1, 1, 1, 4, 8, 1, 1, 3, 1, 1, 1, 1, 1, 1, …)]

Representations

In words
one million twenty-seven thousand two hundred forty
Ordinal
1027240th
Binary
11111010110010101000
Octal
3726250
Hexadecimal
0xFACA8
Base64
D6yo
One's complement
4,293,940,055 (32-bit)
Scientific notation
1.02724 × 10⁶
As a duration
1,027,240 s = 11 days, 21 hours, 20 minutes, 40 seconds
In other bases
ternary (3) 1221012002221
quaternary (4) 3322302220
quinary (5) 230332430
senary (6) 34003424
septenary (7) 11505604
nonary (9) 1835087
undecimal (11) 641865
duodecimal (12) 416574
tridecimal (13) 29c746
tetradecimal (14) 1ca504
pentadecimal (15) 15457a

As an angle

1,027,240° = 2,853 × 360° + 160°
160° ≈ 2.793 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
Chinese
一百零二萬七千二百四十
Chinese (financial)
壹佰零貳萬柒仟貳佰肆拾
In other modern scripts
Eastern Arabic ١٠٢٧٢٤٠ Devanagari १०२७२४० Bengali ১০২৭২৪০ Tamil ௧௦௨௭௨௪௦ Thai ๑๐๒๗๒๔๐ Tibetan ༡༠༢༧༢༤༠ Khmer ១០២៧២៤០ Lao ໑໐໒໗໒໔໐ Burmese ၁၀၂၇၂၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1027240, here are decompositions:

  • 17 + 1027223 = 1027240
  • 29 + 1027211 = 1027240
  • 41 + 1027199 = 1027240
  • 59 + 1027181 = 1027240
  • 101 + 1027139 = 1027240
  • 113 + 1027127 = 1027240
  • 173 + 1027067 = 1027240
  • 239 + 1027001 = 1027240

Showing the first eight; more decompositions exist.

Hex color
#0FACA8
RGB(15, 172, 168)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.172.168.

Address
0.15.172.168
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.172.168

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 2, 7240 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7240-02-01 (DMMYYYY (Euro, single-digit day))
  • 7240-10-02 (MMDYYYY (US, single-digit day))
  • 7240-02-10 (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 1,027,240 and was likely granted around 1912.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 1027240 first appears in π at position 679,956 of the decimal expansion (the 679,956ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.