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1,028,072

1,028,072 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.).

1,028,072 (one million twenty-eight thousand seventy-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2³ × 128,509. Written other ways, in hexadecimal, 0xFAFE8.

Deficient Number Evil Number Refactorable Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
2,708,201
Square (n²)
1,056,932,037,184
Cube (n³)
1,086,602,233,331,829,248
Divisor count
8
σ(n) — sum of divisors
1,927,650
φ(n) — Euler's totient
514,032
Sum of prime factors
128,515

Primality

Prime factorization: 2 3 × 128509

Nearest primes: 1,028,063 (−9) · 1,028,081 (+9)

Divisors & multiples

All divisors (8)
1 · 2 · 4 · 8 · 128509 · 257018 · 514036 (half) · 1028072
Aliquot sum (sum of proper divisors): 899,578
Factor pairs (a × b = 1,028,072)
1 × 1028072
2 × 514036
4 × 257018
8 × 128509
First multiples
1,028,072 · 2,056,144 (double) · 3,084,216 · 4,112,288 · 5,140,360 · 6,168,432 · 7,196,504 · 8,224,576 · 9,252,648 · 10,280,720

Sums & aliquot sequence

As a sum of two squares: 514² + 874²
As consecutive integers: 64,247 + 64,248 + … + 64,262
Aliquot sequence: 1,028,072 899,578 463,994 239,194 128,474 64,240 100,928 112,432 105,436 83,676 122,404 95,324 71,500 111,956 99,136 97,714 48,860 — unresolved within range

Continued fraction of √n

√1,028,072 = [1013; (1, 15, 2, 1, 4, 1, 1, 1, 1, 1, 3, 1, 1, 5, 2, 5, 3, 2, 87, 1, 2, 1, 3, 1, …)]

Representations

In words
one million twenty-eight thousand seventy-two
Ordinal
1028072nd
Binary
11111010111111101000
Octal
3727750
Hexadecimal
0xFAFE8
Base64
D6/o
One's complement
4,293,939,223 (32-bit)
Scientific notation
1.028072 × 10⁶
As a duration
1,028,072 s = 11 days, 21 hours, 34 minutes, 32 seconds
In other bases
ternary (3) 1221020020202
quaternary (4) 3322333220
quinary (5) 230344242
senary (6) 34011332
septenary (7) 11511203
nonary (9) 1836222
undecimal (11) 642451
duodecimal (12) 416b48
tridecimal (13) 29cc36
tetradecimal (14) 1ca93a
pentadecimal (15) 154932

As an angle

1,028,072° = 2,855 × 360° + 272°
272° ≈ 4.747 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬八千零七十二
Chinese (financial)
壹佰零貳萬捌仟零柒拾貳
In other modern scripts
Eastern Arabic ١٠٢٨٠٧٢ Devanagari १०२८०७२ Bengali ১০২৮০৭২ Tamil ௧௦௨௮௦௭௨ Thai ๑๐๒๘๐๗๒ Tibetan ༡༠༢༨༠༧༢ Khmer ១០២៨០៧២ Lao ໑໐໒໘໐໗໒ Burmese ၁၀၂၈၀၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028072, here are decompositions:

  • 43 + 1028029 = 1028072
  • 61 + 1028011 = 1028072
  • 103 + 1027969 = 1028072
  • 181 + 1027891 = 1028072
  • 313 + 1027759 = 1028072
  • 379 + 1027693 = 1028072
  • 523 + 1027549 = 1028072
  • 601 + 1027471 = 1028072

Showing the first eight; more decompositions exist.

Hex color
#0FAFE8
RGB(15, 175, 232)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.175.232.

Address
0.15.175.232
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.175.232

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 2, 8072 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8072-02-01 (DMMYYYY (Euro, single-digit day))
  • 8072-10-02 (MMDYYYY (US, single-digit day))
  • 8072-02-10 (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 1,028,072 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°.