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1,040,720

1,040,720 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.).

1,040,720 (one million forty thousand seven hundred twenty) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 5 × 13,009. Its proper divisors sum to 1,379,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE150.

Abundant Number Arithmetic Number Evil Number Gapful Number Happy Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
270,401
Square (n²)
1,083,098,118,400
Cube (n³)
1,127,201,873,781,248,000
Divisor count
20
σ(n) — sum of divisors
2,419,860
φ(n) — Euler's totient
416,256
Sum of prime factors
13,022

Primality

Prime factorization: 2 4 × 5 × 13009

Nearest primes: 1,040,717 (−3) · 1,040,731 (+11)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 40 · 80 · 13009 · 26018 · 52036 · 65045 · 104072 · 130090 · 208144 · 260180 · 520360 (half) · 1040720
Aliquot sum (sum of proper divisors): 1,379,140
Factor pairs (a × b = 1,040,720)
1 × 1040720
2 × 520360
4 × 260180
5 × 208144
8 × 130090
10 × 104072
16 × 65045
20 × 52036
40 × 26018
80 × 13009
First multiples
1,040,720 · 2,081,440 (double) · 3,122,160 · 4,162,880 · 5,203,600 · 6,244,320 · 7,285,040 · 8,325,760 · 9,366,480 · 10,407,200

Sums & aliquot sequence

As a sum of two squares: 92² + 1,016² = 536² + 868²
As consecutive integers: 208,142 + 208,143 + 208,144 + 208,145 + 208,146 32,507 + 32,508 + … + 32,538 6,425 + 6,426 + … + 6,584
Aliquot sequence: 1,040,720 1,379,140 1,931,132 2,159,332 2,437,148 2,437,204 3,038,252 3,359,188 3,359,244 6,120,996 10,201,884 20,129,508 41,063,260 58,285,220 88,131,484 94,970,148 177,767,772 — unresolved within range

Continued fraction of √n

√1,040,720 = [1020; (6, 2, 1, 1, 1, 31, 3, 1, 24, 1, 3, 31, 1, 1, 1, 2, 6, 2040)]

Period length 18 — the block in parentheses repeats forever.

Representations

In words
one million forty thousand seven hundred twenty
Ordinal
1040720th
Binary
11111110000101010000
Octal
3760520
Hexadecimal
0xFE150
Base64
D+FQ
One's complement
4,293,926,575 (32-bit)
Scientific notation
1.04072 × 10⁶
As a duration
1,040,720 s = 12 days, 1 hour, 5 minutes, 20 seconds
In other bases
ternary (3) 1221212121012
quaternary (4) 3332011100
quinary (5) 231300340
senary (6) 34150052
septenary (7) 11563112
nonary (9) 1855535
undecimal (11) 6509aa
duodecimal (12) 422328
tridecimal (13) 2a5915
tetradecimal (14) 1d13b2
pentadecimal (15) 158565

As an angle

1,040,720° = 2,890 × 360° + 320°
320° ≈ 5.585 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零四萬零七百二十
Chinese (financial)
壹佰零肆萬零柒佰貳拾
In other modern scripts
Eastern Arabic ١٠٤٠٧٢٠ Devanagari १०४०७२० Bengali ১০৪০৭২০ Tamil ௧௦௪௦௭௨௦ Thai ๑๐๔๐๗๒๐ Tibetan ༡༠༤༠༧༢༠ Khmer ១០៤០៧២០ Lao ໑໐໔໐໗໒໐ Burmese ၁၀၄၀၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1040720, here are decompositions:

  • 3 + 1040717 = 1040720
  • 61 + 1040659 = 1040720
  • 139 + 1040581 = 1040720
  • 157 + 1040563 = 1040720
  • 199 + 1040521 = 1040720
  • 271 + 1040449 = 1040720
  • 313 + 1040407 = 1040720
  • 349 + 1040371 = 1040720

Showing the first eight; more decompositions exist.

Hex color
#0FE150
RGB(15, 225, 80)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.225.80.

Address
0.15.225.80
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.225.80

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 4, 0720 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0720-04-01 (DMMYYYY (Euro, single-digit day))
  • 0720-10-04 (MMDYYYY (US, single-digit day))
  • 0720-04-10 (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 1,040,720 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°.