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1,025,428

1,025,428 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.).

1,025,428 (one million twenty-five thousand four hundred twenty-eight) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 269 × 953. Written other ways, in hexadecimal, 0xFA594.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
8,245,201
Square (n²)
1,051,502,583,184
Cube (n³)
1,078,240,190,869,202,752
Divisor count
12
σ(n) — sum of divisors
1,803,060
φ(n) — Euler's totient
510,272
Sum of prime factors
1,226

Primality

Prime factorization: 2 2 × 269 × 953

Nearest primes: 1,025,419 (−9) · 1,025,443 (+15)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 269 · 538 · 953 · 1076 · 1906 · 3812 · 256357 · 512714 (half) · 1025428
Aliquot sum (sum of proper divisors): 777,632
Factor pairs (a × b = 1,025,428)
1 × 1025428
2 × 512714
4 × 256357
269 × 3812
538 × 1906
953 × 1076
First multiples
1,025,428 · 2,050,856 (double) · 3,076,284 · 4,101,712 · 5,127,140 · 6,152,568 · 7,177,996 · 8,203,424 · 9,228,852 · 10,254,280

Sums & aliquot sequence

As a sum of two squares: 222² + 988² = 468² + 898²
As consecutive integers: 128,175 + 128,176 + … + 128,182 3,678 + 3,679 + … + 3,946 600 + 601 + … + 1,552
Aliquot sequence: 1,025,428 777,632 835,168 809,132 720,004 540,010 432,026 308,614 174,506 87,256 89,144 93,376 92,044 69,040 91,664 96,940 113,732 — unresolved within range

Continued fraction of √n

√1,025,428 = [1012; (1, 1, 1, 2, 1, 3, 13, 1, 3, 1, 9, 2, 1, 1, 1, 2, 2, 5, 5, 3, 1, 5, 1, 1, …)]

Representations

In words
one million twenty-five thousand four hundred twenty-eight
Ordinal
1025428th
Binary
11111010010110010100
Octal
3722624
Hexadecimal
0xFA594
Base64
D6WU
One's complement
4,293,941,867 (32-bit)
Scientific notation
1.025428 × 10⁶
As a duration
1,025,428 s = 11 days, 20 hours, 50 minutes, 28 seconds
In other bases
ternary (3) 1221002121211
quaternary (4) 3322112110
quinary (5) 230303203
senary (6) 33551204
septenary (7) 11500405
nonary (9) 1832554
undecimal (11) 640468
duodecimal (12) 415504
tridecimal (13) 29b981
tetradecimal (14) 1c99ac
pentadecimal (15) 153c6d

As an angle

1,025,428° = 2,848 × 360° + 148°
148° ≈ 2.583 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬五千四百二十八
Chinese (financial)
壹佰零貳萬伍仟肆佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٢٥٤٢٨ Devanagari १०२५४२८ Bengali ১০২৫৪২৮ Tamil ௧௦௨௫௪௨௮ Thai ๑๐๒๕๔๒๘ Tibetan ༡༠༢༥༤༢༨ Khmer ១០២៥៤២៨ Lao ໑໐໒໕໔໒໘ Burmese ၁၀၂၅၄၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1025428, here are decompositions:

  • 11 + 1025417 = 1025428
  • 101 + 1025327 = 1025428
  • 149 + 1025279 = 1025428
  • 167 + 1025261 = 1025428
  • 197 + 1025231 = 1025428
  • 281 + 1025147 = 1025428
  • 317 + 1025111 = 1025428
  • 347 + 1025081 = 1025428

Showing the first eight; more decompositions exist.

Hex color
#0FA594
RGB(15, 165, 148)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.165.148.

Address
0.15.165.148
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.165.148

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 2, 5428 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5428-02-01 (DMMYYYY (Euro, single-digit day))
  • 5428-10-02 (MMDYYYY (US, single-digit day))
  • 5428-02-10 (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 1,025,428 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°.