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1,028,125

1,028,125 is a composite number, odd.

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.).

1,028,125 (one million twenty-eight thousand one hundred twenty-five) is an odd 7-digit number. It is a composite number with 24 divisors, and factors as 5⁵ × 7 × 47. Written other ways, in hexadecimal, 0xFB01D.

Arithmetic Number Deficient Number Frugal Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
5,218,201
Square (n²)
1,057,041,015,625
Cube (n³)
1,086,770,294,189,453,125
Divisor count
24
σ(n) — sum of divisors
1,499,904
φ(n) — Euler's totient
690,000
Sum of prime factors
79

Primality

Prime factorization: 5 5 × 7 × 47

Nearest primes: 1,028,117 (−8) · 1,028,129 (+4)

Divisors & multiples

All divisors (24)
1 · 5 · 7 · 25 · 35 · 47 · 125 · 175 · 235 · 329 · 625 · 875 · 1175 · 1645 · 3125 · 4375 · 5875 · 8225 · 21875 · 29375 · 41125 · 146875 · 205625 · 1028125
Aliquot sum (sum of proper divisors): 471,779
Factor pairs (a × b = 1,028,125)
1 × 1028125
5 × 205625
7 × 146875
25 × 41125
35 × 29375
47 × 21875
125 × 8225
175 × 5875
235 × 4375
329 × 3125
625 × 1645
875 × 1175
First multiples
1,028,125 · 2,056,250 (double) · 3,084,375 · 4,112,500 · 5,140,625 · 6,168,750 · 7,196,875 · 8,225,000 · 9,253,125 · 10,281,250

Sums & aliquot sequence

As consecutive integers: 514,062 + 514,063 205,623 + 205,624 + 205,625 + 205,626 + 205,627 146,872 + 146,873 + … + 146,878 102,808 + 102,809 + … + 102,817
Aliquot sequence: 1,028,125 471,779 121,933 17,427 6,589 611 61 1 0 — terminates at zero

Continued fraction of √n

√1,028,125 = [1013; (1, 27, 1, 1, 3, 2, 9, 1, 1, 1, 6, 1, 2, 4, 14, 2, 1, 3, 1, 1, 2, 2, 2, 7, …)]

Representations

In words
one million twenty-eight thousand one hundred twenty-five
Ordinal
1028125th
Binary
11111011000000011101
Octal
3730035
Hexadecimal
0xFB01D
Base64
D7Ad
One's complement
4,293,939,170 (32-bit)
Scientific notation
1.028125 × 10⁶
As a duration
1,028,125 s = 11 days, 21 hours, 35 minutes, 25 seconds
In other bases
ternary (3) 1221020022201
quaternary (4) 3323000131
quinary (5) 230400000
senary (6) 34011501
septenary (7) 11511310
nonary (9) 1836281
undecimal (11) 64249a
duodecimal (12) 416b91
tridecimal (13) 29cc77
tetradecimal (14) 1ca977
pentadecimal (15) 15496a

As an angle

1,028,125° = 2,855 × 360° + 325°
325° ≈ 5.672 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬八千一百二十五
Chinese (financial)
壹佰零貳萬捌仟壹佰貳拾伍
In other modern scripts
Eastern Arabic ١٠٢٨١٢٥ Devanagari १०२८१२५ Bengali ১০২৮১২৫ Tamil ௧௦௨௮௧௨௫ Thai ๑๐๒๘๑๒๕ Tibetan ༡༠༢༨༡༢༥ Khmer ១០២៨១២៥ Lao ໑໐໒໘໑໒໕ Burmese ၁၀၂၈၁၂၅

Also seen as

Hex color
#0FB01D
RGB(15, 176, 29)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.176.29.

Address
0.15.176.29
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.176.29

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 8125 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8125-02-01 (DMMYYYY (Euro, single-digit day))
  • 8125-10-02 (MMDYYYY (US, single-digit day))
  • 8125-02-10 (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 1,028,125 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