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1,021,120

1,021,120 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.).

1,021,120 (one million twenty-one thousand one hundred twenty) is an even 7-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 5 × 3,191. Its proper divisors sum to 1,411,184, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF94C0.

Abundant Number Arithmetic Number Gapful Number Odious 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
211,201
Square (n²)
1,042,686,054,400
Cube (n³)
1,064,707,583,868,928,000
Divisor count
28
σ(n) — sum of divisors
2,432,304
φ(n) — Euler's totient
408,320
Sum of prime factors
3,208

Primality

Prime factorization: 2 6 × 5 × 3191

Nearest primes: 1,021,093 (−27) · 1,021,123 (+3)

Divisors & multiples

All divisors (28)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 64 · 80 · 160 · 320 · 3191 · 6382 · 12764 · 15955 · 25528 · 31910 · 51056 · 63820 · 102112 · 127640 · 204224 · 255280 · 510560 (half) · 1021120
Aliquot sum (sum of proper divisors): 1,411,184
Factor pairs (a × b = 1,021,120)
1 × 1021120
2 × 510560
4 × 255280
5 × 204224
8 × 127640
10 × 102112
16 × 63820
20 × 51056
32 × 31910
40 × 25528
64 × 15955
80 × 12764
160 × 6382
320 × 3191
First multiples
1,021,120 · 2,042,240 (double) · 3,063,360 · 4,084,480 · 5,105,600 · 6,126,720 · 7,147,840 · 8,168,960 · 9,190,080 · 10,211,200

Sums & aliquot sequence

As consecutive integers: 204,222 + 204,223 + 204,224 + 204,225 + 204,226 7,914 + 7,915 + … + 8,041 1,276 + 1,277 + … + 1,915
Aliquot sequence: 1,021,120 1,411,184 1,356,496 1,294,004 1,019,020 1,120,964 991,720 1,239,740 1,363,756 1,022,824 1,115,576 1,493,704 1,559,096 2,086,984 1,826,126 913,066 843,734 — unresolved within range

Continued fraction of √n

√1,021,120 = [1010; (1, 1, 51, 3, 8, 2, 2, 1, 1, 5, 1, 2, 2, 7, 1, 24, 2, 1, 1, 1, 1, 1, 5, 1, …)]

Representations

In words
one million twenty-one thousand one hundred twenty
Ordinal
1021120th
Binary
11111001010011000000
Octal
3712300
Hexadecimal
0xF94C0
Base64
D5TA
One's complement
4,293,946,175 (32-bit)
Scientific notation
1.02112 × 10⁶
As a duration
1,021,120 s = 11 days, 19 hours, 38 minutes, 40 seconds
In other bases
ternary (3) 1220212201021
quaternary (4) 3321103000
quinary (5) 230133440
senary (6) 33515224
septenary (7) 11452012
nonary (9) 1825637
undecimal (11) 638201
duodecimal (12) 412b14
tridecimal (13) 299a19
tetradecimal (14) 1c81b2
pentadecimal (15) 15284a

As an angle

1,021,120° = 2,836 × 360° + 160°
160° ≈ 2.793 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓍢𓎆𓎆
Chinese
一百零二萬一千一百二十
Chinese (financial)
壹佰零貳萬壹仟壹佰貳拾
In other modern scripts
Eastern Arabic ١٠٢١١٢٠ Devanagari १०२११२० Bengali ১০২১১২০ Tamil ௧௦௨௧௧௨௦ Thai ๑๐๒๑๑๒๐ Tibetan ༡༠༢༡༡༢༠ Khmer ១០២១១២០ Lao ໑໐໒໑໑໒໐ Burmese ၁၀၂၁၁၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1021120, here are decompositions:

  • 29 + 1021091 = 1021120
  • 47 + 1021073 = 1021120
  • 53 + 1021067 = 1021120
  • 101 + 1021019 = 1021120
  • 131 + 1020989 = 1021120
  • 227 + 1020893 = 1021120
  • 239 + 1020881 = 1021120
  • 281 + 1020839 = 1021120

Showing the first eight; more decompositions exist.

Hex color
#0F94C0
RGB(15, 148, 192)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.148.192.

Address
0.15.148.192
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.148.192

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 2, 1120 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1120-02-01 (DMMYYYY (Euro, single-digit day))
  • 1120-10-02 (MMDYYYY (US, single-digit day))
  • 1120-02-10 (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 1,021,120 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°.