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1,041,872

1,041,872 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.).

1,041,872 (one million forty-one thousand eight hundred seventy-two) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 13 × 5,009. Its proper divisors sum to 1,132,468, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE5D0.

Abundant Number Arithmetic Number Evil Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
2,781,401
Square (n²)
1,085,497,264,384
Cube (n³)
1,130,949,205,838,286,848
Divisor count
20
σ(n) — sum of divisors
2,174,340
φ(n) — Euler's totient
480,768
Sum of prime factors
5,030

Primality

Prime factorization: 2 4 × 13 × 5009

Nearest primes: 1,041,869 (−3) · 1,041,889 (+17)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 8 · 13 · 16 · 26 · 52 · 104 · 208 · 5009 · 10018 · 20036 · 40072 · 65117 · 80144 · 130234 · 260468 · 520936 (half) · 1041872
Aliquot sum (sum of proper divisors): 1,132,468
Factor pairs (a × b = 1,041,872)
1 × 1041872
2 × 520936
4 × 260468
8 × 130234
13 × 80144
16 × 65117
26 × 40072
52 × 20036
104 × 10018
208 × 5009
First multiples
1,041,872 · 2,083,744 (double) · 3,125,616 · 4,167,488 · 5,209,360 · 6,251,232 · 7,293,104 · 8,334,976 · 9,376,848 · 10,418,720

Sums & aliquot sequence

As a sum of two squares: 184² + 1,004² = 556² + 856²
As consecutive integers: 80,138 + 80,139 + … + 80,150 32,543 + 32,544 + … + 32,574 2,297 + 2,298 + … + 2,712
Aliquot sequence: 1,041,872 1,132,468 849,358 424,682 233,944 204,716 159,844 123,656 140,944 144,752 141,688 128,312 118,528 118,576 111,196 83,404 67,796 — unresolved within range

Continued fraction of √n

√1,041,872 = [1020; (1, 2, 1, 1, 2, 3, 127, 3, 2, 1, 1, 2, 1, 2040)]

Period length 14 — the block in parentheses repeats forever.

Representations

In words
one million forty-one thousand eight hundred seventy-two
Ordinal
1041872nd
Binary
11111110010111010000
Octal
3762720
Hexadecimal
0xFE5D0
Base64
D+XQ
One's complement
4,293,925,423 (32-bit)
Scientific notation
1.041872 × 10⁶
As a duration
1,041,872 s = 12 days, 1 hour, 24 minutes, 32 seconds
In other bases
ternary (3) 1221221011212
quaternary (4) 3332113100
quinary (5) 231314442
senary (6) 34155252
septenary (7) 11566346
nonary (9) 1857155
undecimal (11) 651857
duodecimal (12) 422b28
tridecimal (13) 2a62c0
tetradecimal (14) 1d1996
pentadecimal (15) 158a82

As an angle

1,041,872° = 2,894 × 360° + 32°
32° ≈ 0.559 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬一千八百七十二
Chinese (financial)
壹佰零肆萬壹仟捌佰柒拾貳
In other modern scripts
Eastern Arabic ١٠٤١٨٧٢ Devanagari १०४१८७२ Bengali ১০৪১৮৭২ Tamil ௧௦௪௧௮௭௨ Thai ๑๐๔๑๘๗๒ Tibetan ༡༠༤༡༨༧༢ Khmer ១០៤១៨៧២ Lao ໑໐໔໑໘໗໒ Burmese ၁၀၄၁၈၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1041872, here are decompositions:

  • 3 + 1041869 = 1041872
  • 19 + 1041853 = 1041872
  • 31 + 1041841 = 1041872
  • 43 + 1041829 = 1041872
  • 79 + 1041793 = 1041872
  • 199 + 1041673 = 1041872
  • 229 + 1041643 = 1041872
  • 313 + 1041559 = 1041872

Showing the first eight; more decompositions exist.

Hex color
#0FE5D0
RGB(15, 229, 208)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.229.208.

Address
0.15.229.208
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.229.208

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 4, 1872 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1872-04-01 (DMMYYYY (Euro, single-digit day))
  • 1872-10-04 (MMDYYYY (US, single-digit day))
  • 1872-04-10 (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 1,041,872 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°.