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1,020,072

1,020,072 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.).

1,020,072 (one million twenty thousand seventy-two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 19 × 2,237. Its proper divisors sum to 1,665,528, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF90A8.

Abundant Number Arithmetic Number Gapful Number Harshad / Niven Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
2,700,201
Square (n²)
1,040,546,885,184
Cube (n³)
1,061,432,742,263,413,248
Divisor count
32
σ(n) — sum of divisors
2,685,600
φ(n) — Euler's totient
321,984
Sum of prime factors
2,265

Primality

Prime factorization: 2 3 × 3 × 19 × 2237

Nearest primes: 1,020,059 (−13) · 1,020,077 (+5)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 19 · 24 · 38 · 57 · 76 · 114 · 152 · 228 · 456 · 2237 · 4474 · 6711 · 8948 · 13422 · 17896 · 26844 · 42503 · 53688 · 85006 · 127509 · 170012 · 255018 · 340024 · 510036 (half) · 1020072
Aliquot sum (sum of proper divisors): 1,665,528
Factor pairs (a × b = 1,020,072)
1 × 1020072
2 × 510036
3 × 340024
4 × 255018
6 × 170012
8 × 127509
12 × 85006
19 × 53688
24 × 42503
38 × 26844
57 × 17896
76 × 13422
114 × 8948
152 × 6711
228 × 4474
456 × 2237
First multiples
1,020,072 · 2,040,144 (double) · 3,060,216 · 4,080,288 · 5,100,360 · 6,120,432 · 7,140,504 · 8,160,576 · 9,180,648 · 10,200,720

Sums & aliquot sequence

As consecutive integers: 340,023 + 340,024 + 340,025 63,747 + 63,748 + … + 63,762 53,679 + 53,680 + … + 53,697 21,228 + 21,229 + … + 21,275
Aliquot sequence: 1,020,072 1,665,528 2,643,672 4,081,128 6,121,752 12,721,128 23,625,432 42,807,108 57,076,172 42,807,136 41,469,476 34,921,804 27,312,116 25,824,268 23,391,332 17,543,506 9,405,518 — unresolved within range

Continued fraction of √n

√1,020,072 = [1009; (1, 71, 7, 41, 12, 3, 2, 2, 1, 1, 6, 2, 4, 1, 4, 4, 13, 1, 7, 1, 13, 4, 4, 1, …)]

Period length 38 — the block in parentheses repeats forever.

Representations

In words
one million twenty thousand seventy-two
Ordinal
1020072nd
Binary
11111001000010101000
Octal
3710250
Hexadecimal
0xF90A8
Base64
D5Co
One's complement
4,293,947,223 (32-bit)
Scientific notation
1.020072 × 10⁶
As a duration
1,020,072 s = 11 days, 19 hours, 21 minutes, 12 seconds
In other bases
ternary (3) 1220211021110
quaternary (4) 3321002220
quinary (5) 230120242
senary (6) 33510320
septenary (7) 11445654
nonary (9) 1824243
undecimal (11) 637439
duodecimal (12) 4123a0
tridecimal (13) 2993c1
tetradecimal (14) 1c7a64
pentadecimal (15) 15239c

As an angle

1,020,072° = 2,833 × 360° + 192°
192° ≈ 3.351 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬零七十二
Chinese (financial)
壹佰零貳萬零柒拾貳
In other modern scripts
Eastern Arabic ١٠٢٠٠٧٢ Devanagari १०२००७२ Bengali ১০২০০৭২ Tamil ௧௦௨௦௦௭௨ Thai ๑๐๒๐๐๗๒ Tibetan ༡༠༢༠༠༧༢ Khmer ១០២០០៧២ Lao ໑໐໒໐໐໗໒ Burmese ၁၀၂၀၀၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020072, here are decompositions:

  • 13 + 1020059 = 1020072
  • 23 + 1020049 = 1020072
  • 29 + 1020043 = 1020072
  • 59 + 1020013 = 1020072
  • 61 + 1020011 = 1020072
  • 71 + 1020001 = 1020072
  • 101 + 1019971 = 1020072
  • 173 + 1019899 = 1020072

Showing the first eight; more decompositions exist.

Hex color
#0F90A8
RGB(15, 144, 168)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.144.168.

Address
0.15.144.168
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.144.168

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 2, 0072 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0072-02-01 (DMMYYYY (Euro, single-digit day))
  • 0072-10-02 (MMDYYYY (US, single-digit day))
  • 0072-02-10 (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 1,020,072 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°.