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1,048,728

1,048,728 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.).

1,048,728 (one million forty-eight thousand seven hundred twenty-eight) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 37 × 1,181. Its proper divisors sum to 1,646,232, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x100098.

Abundant Number Evil Number Practical Number Semiperfect Number Smith Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
30
Digit product
0
Digital root
3
Palindrome
No
Bit width
21 bits
Reversed
8,278,401
Square (n²)
1,099,830,417,984
Cube (n³)
1,153,422,954,591,524,352
Divisor count
32
σ(n) — sum of divisors
2,694,960
φ(n) — Euler's totient
339,840
Sum of prime factors
1,227

Primality

Prime factorization: 2 3 × 3 × 37 × 1181

Nearest primes: 1,048,721 (−7) · 1,048,759 (+31)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 24 · 37 · 74 · 111 · 148 · 222 · 296 · 444 · 888 · 1181 · 2362 · 3543 · 4724 · 7086 · 9448 · 14172 · 28344 · 43697 · 87394 · 131091 · 174788 · 262182 · 349576 · 524364 (half) · 1048728
Aliquot sum (sum of proper divisors): 1,646,232
Factor pairs (a × b = 1,048,728)
1 × 1048728
2 × 524364
3 × 349576
4 × 262182
6 × 174788
8 × 131091
12 × 87394
24 × 43697
37 × 28344
74 × 14172
111 × 9448
148 × 7086
222 × 4724
296 × 3543
444 × 2362
888 × 1181
First multiples
1,048,728 · 2,097,456 (double) · 3,146,184 · 4,194,912 · 5,243,640 · 6,292,368 · 7,341,096 · 8,389,824 · 9,438,552 · 10,487,280

Sums & aliquot sequence

As consecutive integers: 349,575 + 349,576 + 349,577 65,538 + 65,539 + … + 65,553 28,326 + 28,327 + … + 28,362 21,825 + 21,826 + … + 21,872
Aliquot sequence: 1,048,728 1,646,232 3,192,168 5,928,792 9,623,208 18,610,872 35,717,448 60,445,752 92,743,128 158,436,372 211,248,524 162,225,556 121,984,524 186,365,336 171,593,104 198,963,536 190,348,228 — unresolved within range

Continued fraction of √n

√1,048,728 = [1024; (13, 2, 9, 5, 1, 1, 3, 5, 1, 3, 1, 8, 28, 1, 2, 1, 3, 41, 1, 1, 7, 3, 1, 1, …)]

Representations

In words
one million forty-eight thousand seven hundred twenty-eight
Ordinal
1048728th
Binary
100000000000010011000
Octal
4000230
Hexadecimal
0x100098
Base64
EACY
One's complement
4,293,918,567 (32-bit)
Scientific notation
1.048728 × 10⁶
As a duration
1,048,728 s = 12 days, 3 hours, 18 minutes, 48 seconds
In other bases
ternary (3) 1222021120210
quaternary (4) 10000002120
quinary (5) 232024403
senary (6) 34251120
septenary (7) 11625342
nonary (9) 1867523
undecimal (11) 656a1a
duodecimal (12) 426aa0
tridecimal (13) 2a9465
tetradecimal (14) 1d4292
pentadecimal (15) 15ab03

As an angle

1,048,728° = 2,913 × 360° + 48°
48° ≈ 0.838 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零四萬八千七百二十八
Chinese (financial)
壹佰零肆萬捌仟柒佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٤٨٧٢٨ Devanagari १०४८७२८ Bengali ১০৪৮৭২৮ Tamil ௧௦௪௮௭௨௮ Thai ๑๐๔๘๗๒๘ Tibetan ༡༠༤༨༧༢༨ Khmer ១០៤៨៧២៨ Lao ໑໐໔໘໗໒໘ Burmese ၁၀၄၈၇၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1048728, here are decompositions:

  • 7 + 1048721 = 1048728
  • 11 + 1048717 = 1048728
  • 19 + 1048709 = 1048728
  • 47 + 1048681 = 1048728
  • 67 + 1048661 = 1048728
  • 101 + 1048627 = 1048728
  • 127 + 1048601 = 1048728
  • 139 + 1048589 = 1048728

Showing the first eight; more decompositions exist.

Hex color
#100098
RGB(16, 0, 152)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.0.152.

Address
0.16.0.152
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.0.152

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 4, 8728 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8728-04-01 (DMMYYYY (Euro, single-digit day))
  • 8728-10-04 (MMDYYYY (US, single-digit day))
  • 8728-04-10 (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 1,048,728 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°.