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1,020,220

1,020,220 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.).

1,020,220 (one million twenty thousand two hundred twenty) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 29 × 1,759. Its proper divisors sum to 1,197,380, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF913C.

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

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
7
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
220,201
Square (n²)
1,040,848,848,400
Cube (n³)
1,061,894,812,114,648,000
Divisor count
24
σ(n) — sum of divisors
2,217,600
φ(n) — Euler's totient
393,792
Sum of prime factors
1,797

Primality

Prime factorization: 2 2 × 5 × 29 × 1759

Nearest primes: 1,020,163 (−57) · 1,020,223 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 20 · 29 · 58 · 116 · 145 · 290 · 580 · 1759 · 3518 · 7036 · 8795 · 17590 · 35180 · 51011 · 102022 · 204044 · 255055 · 510110 (half) · 1020220
Aliquot sum (sum of proper divisors): 1,197,380
Factor pairs (a × b = 1,020,220)
1 × 1020220
2 × 510110
4 × 255055
5 × 204044
10 × 102022
20 × 51011
29 × 35180
58 × 17590
116 × 8795
145 × 7036
290 × 3518
580 × 1759
First multiples
1,020,220 · 2,040,440 (double) · 3,060,660 · 4,080,880 · 5,101,100 · 6,121,320 · 7,141,540 · 8,161,760 · 9,181,980 · 10,202,200

Sums & aliquot sequence

As consecutive integers: 204,042 + 204,043 + 204,044 + 204,045 + 204,046 127,524 + 127,525 + … + 127,531 35,166 + 35,167 + … + 35,194 25,486 + 25,487 + … + 25,525
Aliquot sequence: 1,020,220 1,197,380 1,584,700 2,352,548 2,184,796 1,674,444 2,232,620 2,998,228 2,248,678 1,233,242 676,390 798,314 522,742 332,690 341,230 273,002 136,504 — unresolved within range

Continued fraction of √n

√1,020,220 = [1010; (16, 1, 5, 55, 1, 17, 1, 1, 4, 2, 2, 24, 1, 1, 7, 2, 2, 2, 1, 14, 6, 1, 3, 1, …)]

Representations

In words
one million twenty thousand two hundred twenty
Ordinal
1020220th
Binary
11111001000100111100
Octal
3710474
Hexadecimal
0xF913C
Base64
D5E8
One's complement
4,293,947,075 (32-bit)
Scientific notation
1.02022 × 10⁶
As a duration
1,020,220 s = 11 days, 19 hours, 23 minutes, 40 seconds
In other bases
ternary (3) 1220211110221
quaternary (4) 3321010330
quinary (5) 230121340
senary (6) 33511124
septenary (7) 11446255
nonary (9) 1824427
undecimal (11) 637563
duodecimal (12) 4124a4
tridecimal (13) 2994a6
tetradecimal (14) 1c7b2c
pentadecimal (15) 15244a

As an angle

1,020,220° = 2,833 × 360° + 340°
340° ≈ 5.934 rad
Compass bearing: NNW (north-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓎆𓎆
Chinese
一百零二萬零二百二十
Chinese (financial)
壹佰零貳萬零貳佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٠٢٢٠ Devanagari १०२०२२० Bengali ১০২০২২০ Tamil ௧௦௨௦௨௨௦ Thai ๑๐๒๐๒๒๐ Tibetan ༡༠༢༠༢༢༠ Khmer ១០២០២២០ Lao ໑໐໒໐໒໒໐ Burmese ၁၀၂၀၂၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020220, here are decompositions:

  • 83 + 1020137 = 1020220
  • 107 + 1020113 = 1020220
  • 197 + 1020023 = 1020220
  • 293 + 1019927 = 1020220
  • 317 + 1019903 = 1020220
  • 347 + 1019873 = 1020220
  • 359 + 1019861 = 1020220
  • 401 + 1019819 = 1020220

Showing the first eight; more decompositions exist.

Hex color
#0F913C
RGB(15, 145, 60)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.145.60.

Address
0.15.145.60
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.145.60

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 0220 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0220-02-01 (DMMYYYY (Euro, single-digit day))
  • 0220-10-02 (MMDYYYY (US, single-digit day))
  • 0220-02-10 (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 1,020,220 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°.