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1,018,120

1,018,120 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.).

1,018,120 (one million eighteen thousand one hundred twenty) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 25,453. Its proper divisors sum to 1,272,740, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF8908.

Abundant Number Evil Number Gapful Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
218,101
Square (n²)
1,036,568,334,400
Cube (n³)
1,055,350,952,619,328,000
Divisor count
16
σ(n) — sum of divisors
2,290,860
φ(n) — Euler's totient
407,232
Sum of prime factors
25,464

Primality

Prime factorization: 2 3 × 5 × 25453

Nearest primes: 1,018,109 (−11) · 1,018,123 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 25453 · 50906 · 101812 · 127265 · 203624 · 254530 · 509060 (half) · 1018120
Aliquot sum (sum of proper divisors): 1,272,740
Factor pairs (a × b = 1,018,120)
1 × 1018120
2 × 509060
4 × 254530
5 × 203624
8 × 127265
10 × 101812
20 × 50906
40 × 25453
First multiples
1,018,120 · 2,036,240 (double) · 3,054,360 · 4,072,480 · 5,090,600 · 6,108,720 · 7,126,840 · 8,144,960 · 9,163,080 · 10,181,200

Sums & aliquot sequence

As a sum of two squares: 78² + 1,006² = 666² + 758²
As consecutive integers: 203,622 + 203,623 + 203,624 + 203,625 + 203,626 63,625 + 63,626 + … + 63,640 12,687 + 12,688 + … + 12,766
Aliquot sequence: 1,018,120 1,272,740 1,782,172 1,782,228 3,078,572 3,289,468 3,927,644 4,355,596 4,355,652 7,259,644 7,519,316 7,519,372 8,405,012 10,585,708 11,104,436 12,274,444 14,163,604 — unresolved within range

Continued fraction of √n

√1,018,120 = [1009; (51, 1, 2, 1, 9, 1, 4, 2, 5, 1, 3, 2, 3, 1, 1, 1, 2, 1, 3, 2, 3, 1, 64, 3, …)]

Representations

In words
one million eighteen thousand one hundred twenty
Ordinal
1018120th
Binary
11111000100100001000
Octal
3704410
Hexadecimal
0xF8908
Base64
D4kI
One's complement
4,293,949,175 (32-bit)
Scientific notation
1.01812 × 10⁶
As a duration
1,018,120 s = 11 days, 18 hours, 48 minutes, 40 seconds
In other bases
ternary (3) 1220201121011
quaternary (4) 3320210020
quinary (5) 230034440
senary (6) 33453304
septenary (7) 11440165
nonary (9) 1821534
undecimal (11) 635a24
duodecimal (12) 411234
tridecimal (13) 29854c
tetradecimal (14) 1c706c
pentadecimal (15) 1519ea

As an angle

1,018,120° = 2,828 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆
Chinese
一百零一萬八千一百二十
Chinese (financial)
壹佰零壹萬捌仟壹佰貳拾
In other modern scripts
Eastern Arabic ١٠١٨١٢٠ Devanagari १०१८१२० Bengali ১০১৮১২০ Tamil ௧௦௧௮௧௨௦ Thai ๑๐๑๘๑๒๐ Tibetan ༡༠༡༨༡༢༠ Khmer ១០១៨១២០ Lao ໑໐໑໘໑໒໐ Burmese ၁၀၁၈၁၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018120, here are decompositions:

  • 11 + 1018109 = 1018120
  • 23 + 1018097 = 1018120
  • 29 + 1018091 = 1018120
  • 101 + 1018019 = 1018120
  • 113 + 1018007 = 1018120
  • 167 + 1017953 = 1018120
  • 197 + 1017923 = 1018120
  • 239 + 1017881 = 1018120

Showing the first eight; more decompositions exist.

Hex color
#0F8908
RGB(15, 137, 8)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.137.8.

Address
0.15.137.8
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.137.8

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 8120 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8120-10-01 (MMDYYYY (US, single-digit day))
  • 8120-01-10 (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 1,018,120 and was likely granted around 1911.

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

Position in π

The digit sequence 1018120 first appears in π at position 847,056 of the decimal expansion (the 847,056ordinal-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°.