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940,820

940,820 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.).

940,820 (nine hundred forty thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 47,041. Its proper divisors sum to 1,034,944, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xE5B14.

Abundant Number Arithmetic Number Cube-Free Evil Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
28,049
Square (n²)
885,142,272,400
Cube (n³)
832,759,552,719,368,000
Divisor count
12
σ(n) — sum of divisors
1,975,764
φ(n) — Euler's totient
376,320
Sum of prime factors
47,050

Primality

Prime factorization: 2 2 × 5 × 47041

Nearest primes: 940,817 (−3) · 940,829 (+9)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 47041 · 94082 · 188164 · 235205 · 470410 (half) · 940820
Aliquot sum (sum of proper divisors): 1,034,944
Factor pairs (a × b = 940,820)
1 × 940820
2 × 470410
4 × 235205
5 × 188164
10 × 94082
20 × 47041
First multiples
940,820 · 1,881,640 (double) · 2,822,460 · 3,763,280 · 4,704,100 · 5,644,920 · 6,585,740 · 7,526,560 · 8,467,380 · 9,408,200

Sums & aliquot sequence

As a sum of two squares: 124² + 962² = 478² + 844²
As consecutive integers: 188,162 + 188,163 + 188,164 + 188,165 + 188,166 117,599 + 117,600 + … + 117,606 23,501 + 23,502 + … + 23,540
Aliquot sequence: 940,820 1,034,944 1,051,920 2,578,800 6,892,816 8,370,096 17,223,504 29,208,048 46,465,680 97,578,672 156,500,304 247,792,272 616,152,432 1,202,965,264 1,127,779,966 666,535,490 603,803,062 — unresolved within range

Continued fraction of √n

√940,820 = [969; (1, 23, 4, 120, 1, 386, 1, 120, 4, 23, 1, 1938)]

Period length 12 — the block in parentheses repeats forever.

Representations

In words
nine hundred forty thousand eight hundred twenty
Ordinal
940820th
Binary
11100101101100010100
Octal
3455424
Hexadecimal
0xE5B14
Base64
DlsU
One's complement
4,294,026,475 (32-bit)
Scientific notation
9.4082 × 10⁵
As a duration
940,820 s = 10 days, 21 hours, 20 minutes, 20 seconds
In other bases
ternary (3) 1202210120012
quaternary (4) 3211230110
quinary (5) 220101240
senary (6) 32055352
septenary (7) 10665626
nonary (9) 1683505
undecimal (11) 592941
duodecimal (12) 394558
tridecimal (13) 26c2ca
tetradecimal (14) 1a6c16
pentadecimal (15) 138b65

As an angle

940,820° = 2,613 × 360° + 140°
140° ≈ 2.443 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵ϡμωκʹ
Chinese
九十四萬零八百二十
Chinese (financial)
玖拾肆萬零捌佰貳拾
In other modern scripts
Eastern Arabic ٩٤٠٨٢٠ Devanagari ९४०८२० Bengali ৯৪০৮২০ Tamil ௯௪௦௮௨௦ Thai ๙๔๐๘๒๐ Tibetan ༩༤༠༨༢༠ Khmer ៩៤០៨២០ Lao ໙໔໐໘໒໐ Burmese ၉၄၀၈၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 940820, here are decompositions:

  • 3 + 940817 = 940820
  • 7 + 940813 = 940820
  • 19 + 940801 = 940820
  • 37 + 940783 = 940820
  • 61 + 940759 = 940820
  • 151 + 940669 = 940820
  • 271 + 940549 = 940820
  • 277 + 940543 = 940820

Showing the first eight; more decompositions exist.

Hex color
#0E5B14
RGB(14, 91, 20)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.14.91.20.

Address
0.14.91.20
Class
reserved
IPv4-mapped IPv6
::ffff:0.14.91.20

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

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 940,820 and was likely granted around 1909.

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

Position in π

The digit sequence 940820 first appears in π at position 81,205 of the decimal expansion (the 81,205ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

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