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1,015,228

1,015,228 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.).

1,015,228 (one million fifteen thousand two hundred twenty-eight) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 353 × 719. Written other ways, in hexadecimal, 0xF7DBC.

Arithmetic Number Cube-Free Deficient Number Odious Number Recamán's Sequence

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
8,225,101
Recamán's sequence
a(364,411) = 1,015,228
Square (n²)
1,030,687,891,984
Cube (n³)
1,046,383,207,203,132,352
Divisor count
12
σ(n) — sum of divisors
1,784,160
φ(n) — Euler's totient
505,472
Sum of prime factors
1,076

Primality

Prime factorization: 2 2 × 353 × 719

Nearest primes: 1,015,207 (−21) · 1,015,277 (+49)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 353 · 706 · 719 · 1412 · 1438 · 2876 · 253807 · 507614 (half) · 1015228
Aliquot sum (sum of proper divisors): 768,932
Factor pairs (a × b = 1,015,228)
1 × 1015228
2 × 507614
4 × 253807
353 × 2876
706 × 1438
719 × 1412
First multiples
1,015,228 · 2,030,456 (double) · 3,045,684 · 4,060,912 · 5,076,140 · 6,091,368 · 7,106,596 · 8,121,824 · 9,137,052 · 10,152,280

Sums & aliquot sequence

As consecutive integers: 126,900 + 126,901 + … + 126,907 2,700 + 2,701 + … + 3,052 1,053 + 1,054 + … + 1,771
Aliquot sequence: 1,015,228 768,932 576,706 379,382 189,694 94,850 107,518 53,762 26,884 29,564 25,036 22,844 17,140 18,896 17,746 10,334 5,170 — unresolved within range

Continued fraction of √n

√1,015,228 = [1007; (1, 1, 2, 2, 3, 4, 6, 2, 2, 1, 1, 5, 1, 2, 3, 1, 4, 1, 1, 2, 3, 2, 1, 7, …)]

Representations

In words
one million fifteen thousand two hundred twenty-eight
Ordinal
1015228th
Binary
11110111110110111100
Octal
3676674
Hexadecimal
0xF7DBC
Base64
D328
One's complement
4,293,952,067 (32-bit)
Scientific notation
1.015228 × 10⁶
As a duration
1,015,228 s = 11 days, 18 hours, 28 seconds
In other bases
ternary (3) 1220120122001
quaternary (4) 3313312330
quinary (5) 224441403
senary (6) 33432044
septenary (7) 11425564
nonary (9) 1816561
undecimal (11) 633835
duodecimal (12) 40b624
tridecimal (13) 297136
tetradecimal (14) 1c5da4
pentadecimal (15) 150c1d

As an angle

1,015,228° = 2,820 × 360° + 28°
28° ≈ 0.489 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 · 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零一萬五千二百二十八
Chinese (financial)
壹佰零壹萬伍仟貳佰貳拾捌
In other modern scripts
Eastern Arabic ١٠١٥٢٢٨ Devanagari १०१५२२८ Bengali ১০১৫২২৮ Tamil ௧௦௧௫௨௨௮ Thai ๑๐๑๕๒๒๘ Tibetan ༡༠༡༥༢༢༨ Khmer ១០១៥២២៨ Lao ໑໐໑໕໒໒໘ Burmese ၁၀၁၅၂၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1015228, here are decompositions:

  • 29 + 1015199 = 1015228
  • 89 + 1015139 = 1015228
  • 101 + 1015127 = 1015228
  • 131 + 1015097 = 1015228
  • 167 + 1015061 = 1015228
  • 239 + 1014989 = 1015228
  • 359 + 1014869 = 1015228
  • 449 + 1014779 = 1015228

Showing the first eight; more decompositions exist.

Hex color
#0F7DBC
RGB(15, 125, 188)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.125.188.

Address
0.15.125.188
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.125.188

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 1, 5228 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 5228-10-01 (MMDYYYY (US, single-digit day))
  • 5228-01-10 (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 1,015,228 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

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.