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1,005,072

1,005,072 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.).

1,005,072 (one million five thousand seventy-two) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 3 × 20,939. Its proper divisors sum to 1,591,488, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF5610.

Abundant Number Arithmetic Number Gapful Number Happy Number Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
2,705,001
Square (n²)
1,010,169,725,184
Cube (n³)
1,015,293,306,030,133,248
Divisor count
20
σ(n) — sum of divisors
2,596,560
φ(n) — Euler's totient
335,008
Sum of prime factors
20,950

Primality

Prime factorization: 2 4 × 3 × 20939

Nearest primes: 1,005,071 (−1) · 1,005,073 (+1)

Divisors & multiples

All divisors (20)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 16 · 24 · 48 · 20939 · 41878 · 62817 · 83756 · 125634 · 167512 · 251268 · 335024 · 502536 (half) · 1005072
Aliquot sum (sum of proper divisors): 1,591,488
Factor pairs (a × b = 1,005,072)
1 × 1005072
2 × 502536
3 × 335024
4 × 251268
6 × 167512
8 × 125634
12 × 83756
16 × 62817
24 × 41878
48 × 20939
First multiples
1,005,072 · 2,010,144 (double) · 3,015,216 · 4,020,288 · 5,025,360 · 6,030,432 · 7,035,504 · 8,040,576 · 9,045,648 · 10,050,720

Sums & aliquot sequence

As consecutive integers: 335,023 + 335,024 + 335,025 31,393 + 31,394 + … + 31,424 10,422 + 10,423 + … + 10,517
Aliquot sequence: 1,005,072 1,591,488 3,141,548 2,370,532 1,816,728 2,805,672 4,208,568 9,338,952 17,344,248 26,142,552 45,068,328 77,840,172 120,959,884 93,270,860 102,597,988 77,175,564 102,900,780 — unresolved within range

Continued fraction of √n

√1,005,072 = [1002; (1, 1, 7, 8, 11, 1, 7, 1, 1, 2, 1, 2, 6, 4, 86, 1, 14, 1, 2, 11, 1, 1, 9, 1, …)]

Representations

In words
one million five thousand seventy-two
Ordinal
1005072nd
Binary
11110101011000010000
Octal
3653020
Hexadecimal
0xF5610
Base64
D1YQ
One's complement
4,293,962,223 (32-bit)
Scientific notation
1.005072 × 10⁶
As a duration
1,005,072 s = 11 days, 15 hours, 11 minutes, 12 seconds
In other bases
ternary (3) 1220001200220
quaternary (4) 3311120100
quinary (5) 224130242
senary (6) 33313040
septenary (7) 11354145
nonary (9) 1801626
undecimal (11) 627142
duodecimal (12) 405780
tridecimal (13) 292623
tetradecimal (14) 1c23cc
pentadecimal (15) 14cbec

As an angle

1,005,072° = 2,791 × 360° + 312°
312° ≈ 5.445 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百萬五千零七十二
Chinese (financial)
壹佰萬伍仟零柒拾貳
In other modern scripts
Eastern Arabic ١٠٠٥٠٧٢ Devanagari १००५०७२ Bengali ১০০৫০৭২ Tamil ௧௦௦௫௦௭௨ Thai ๑๐๐๕๐๗๒ Tibetan ༡༠༠༥༠༧༢ Khmer ១០០៥០៧២ Lao ໑໐໐໕໐໗໒ Burmese ၁၀၀၅၀၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005072, here are decompositions:

  • 23 + 1005049 = 1005072
  • 31 + 1005041 = 1005072
  • 43 + 1005029 = 1005072
  • 53 + 1005019 = 1005072
  • 59 + 1005013 = 1005072
  • 109 + 1004963 = 1005072
  • 199 + 1004873 = 1005072
  • 293 + 1004779 = 1005072

Showing the first eight; more decompositions exist.

Hex color
#0F5610
RGB(15, 86, 16)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.86.16.

Address
0.15.86.16
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.86.16

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 1,005,072 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°.