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1,018,225

1,018,225 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.).

1,018,225 (one million eighteen thousand two hundred twenty-five) is an odd 7-digit number. It is a composite number with 18 divisors, and factors as 5² × 13² × 241. Written other ways, in hexadecimal, 0xF8971.

Cube-Free Deficient 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
5,228,101
Square (n²)
1,036,782,150,625
Cube (n³)
1,055,677,505,320,140,625
Divisor count
18
σ(n) — sum of divisors
1,372,866
φ(n) — Euler's totient
748,800
Sum of prime factors
277

Primality

Prime factorization: 5 2 × 13 2 × 241

Nearest primes: 1,018,223 (−2) · 1,018,247 (+22)

Divisors & multiples

All divisors (18)
1 · 5 · 13 · 25 · 65 · 169 · 241 · 325 · 845 · 1205 · 3133 · 4225 · 6025 · 15665 · 40729 · 78325 · 203645 · 1018225
Aliquot sum (sum of proper divisors): 354,641
Factor pairs (a × b = 1,018,225)
1 × 1018225
5 × 203645
13 × 78325
25 × 40729
65 × 15665
169 × 6025
241 × 4225
325 × 3133
845 × 1205
First multiples
1,018,225 · 2,036,450 (double) · 3,054,675 · 4,072,900 · 5,091,125 · 6,109,350 · 7,127,575 · 8,145,800 · 9,164,025 · 10,182,250

Sums & aliquot sequence

As a sum of two squares: 12² + 1,009² = 135² + 1,000² = 260² + 975² = 271² + 972²
As consecutive integers: 509,112 + 509,113 203,643 + 203,644 + 203,645 + 203,646 + 203,647 101,818 + 101,819 + … + 101,827 78,319 + 78,320 + … + 78,331
Aliquot sequence: 1,018,225 354,641 64,879 1 0 — terminates at zero

Continued fraction of √n

√1,018,225 = [1009; (14, 69, 1, 1, 12, 5, 3, 2, 11, 1, 1, 26, 2, 1, 1, 2, 1, 1, 1, 2, 2, 2, 5, 1, …)]

Representations

In words
one million eighteen thousand two hundred twenty-five
Ordinal
1018225th
Binary
11111000100101110001
Octal
3704561
Hexadecimal
0xF8971
Base64
D4lx
One's complement
4,293,949,070 (32-bit)
Scientific notation
1.018225 × 10⁶
As a duration
1,018,225 s = 11 days, 18 hours, 50 minutes, 25 seconds
In other bases
ternary (3) 1220201202001
quaternary (4) 3320211301
quinary (5) 230040400
senary (6) 33454001
septenary (7) 11440405
nonary (9) 1821661
undecimal (11) 63600a
duodecimal (12) 411301
tridecimal (13) 298600
tetradecimal (14) 1c7105
pentadecimal (15) 151a6a

As an angle

1,018,225° = 2,828 × 360° + 145°
145° ≈ 2.531 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Chinese
一百零一萬八千二百二十五
Chinese (financial)
壹佰零壹萬捌仟貳佰貳拾伍
In other modern scripts
Eastern Arabic ١٠١٨٢٢٥ Devanagari १०१८२२५ Bengali ১০১৮২২৫ Tamil ௧௦௧௮௨௨௫ Thai ๑๐๑๘๒๒๕ Tibetan ༡༠༡༨༢༢༥ Khmer ១០១៨២២៥ Lao ໑໐໑໘໒໒໕ Burmese ၁၀၁၈၂၂၅

Also seen as

Hex color
#0F8971
RGB(15, 137, 113)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.137.113.

Address
0.15.137.113
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.137.113

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 1, 8225 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8225-10-01 (MMDYYYY (US, single-digit day))
  • 8225-01-10 (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 1,018,225 and was likely granted around 1911.

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

Related reading