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1,020,620

1,020,620 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.).

1,020,620 (one million twenty thousand six hundred twenty) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 51,031. Its proper divisors sum to 1,122,724, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF92CC.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
260,201
Square (n²)
1,041,665,184,400
Cube (n³)
1,063,144,320,502,328,000
Divisor count
12
σ(n) — sum of divisors
2,143,344
φ(n) — Euler's totient
408,240
Sum of prime factors
51,040

Primality

Prime factorization: 2 2 × 5 × 51031

Nearest primes: 1,020,619 (−1) · 1,020,631 (+11)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 51031 · 102062 · 204124 · 255155 · 510310 (half) · 1020620
Aliquot sum (sum of proper divisors): 1,122,724
Factor pairs (a × b = 1,020,620)
1 × 1020620
2 × 510310
4 × 255155
5 × 204124
10 × 102062
20 × 51031
First multiples
1,020,620 · 2,041,240 (double) · 3,061,860 · 4,082,480 · 5,103,100 · 6,123,720 · 7,144,340 · 8,164,960 · 9,185,580 · 10,206,200

Sums & aliquot sequence

As consecutive integers: 204,122 + 204,123 + 204,124 + 204,125 + 204,126 127,574 + 127,575 + … + 127,581 25,496 + 25,497 + … + 25,535
Aliquot sequence: 1,020,620 1,122,724 842,050 867,662 438,034 219,020 252,724 227,084 240,964 185,420 212,404 159,310 132,290 105,850 100,610 80,506 40,256 — unresolved within range

Continued fraction of √n

√1,020,620 = [1010; (3, 1, 7, 1, 2, 2, 1, 1, 1, 3, 1, 10, 5, 13, 2, 1, 2, 1, 15, 1, 1, 3, 3, 1, …)]

Representations

In words
one million twenty thousand six hundred twenty
Ordinal
1020620th
Binary
11111001001011001100
Octal
3711314
Hexadecimal
0xF92CC
Base64
D5LM
One's complement
4,293,946,675 (32-bit)
Scientific notation
1.02062 × 10⁶
As a duration
1,020,620 s = 11 days, 19 hours, 30 minutes, 20 seconds
In other bases
ternary (3) 1220212000202
quaternary (4) 3321023030
quinary (5) 230124440
senary (6) 33513032
septenary (7) 11450366
nonary (9) 1825022
undecimal (11) 637897
duodecimal (12) 412778
tridecimal (13) 299723
tetradecimal (14) 1c7d36
pentadecimal (15) 152615

As an angle

1,020,620° = 2,835 × 360° + 20°
20° ≈ 0.349 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零二萬零六百二十
Chinese (financial)
壹佰零貳萬零陸佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٠٦٢٠ Devanagari १०२०६२० Bengali ১০২০৬২০ Tamil ௧௦௨௦௬௨௦ Thai ๑๐๒๐๖๒๐ Tibetan ༡༠༢༠༦༢༠ Khmer ១០២០៦២០ Lao ໑໐໒໐໖໒໐ Burmese ၁၀၂၀၆၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020620, here are decompositions:

  • 31 + 1020589 = 1020620
  • 37 + 1020583 = 1020620
  • 79 + 1020541 = 1020620
  • 103 + 1020517 = 1020620
  • 163 + 1020457 = 1020620
  • 241 + 1020379 = 1020620
  • 283 + 1020337 = 1020620
  • 373 + 1020247 = 1020620

Showing the first eight; more decompositions exist.

Hex color
#0F92CC
RGB(15, 146, 204)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.146.204.

Address
0.15.146.204
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.146.204

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 0620 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0620-02-01 (DMMYYYY (Euro, single-digit day))
  • 0620-10-02 (MMDYYYY (US, single-digit day))
  • 0620-02-10 (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 1,020,620 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°.