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1,003,720

1,003,720 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.).

1,003,720 (one million three thousand seven hundred twenty) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 23 × 1,091. Its proper divisors sum to 1,355,000, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF50C8.

Abundant Number Arithmetic Number Gapful Number Odious Number Practical 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
273,001
Square (n²)
1,007,453,838,400
Cube (n³)
1,011,201,566,678,848,000
Divisor count
32
σ(n) — sum of divisors
2,358,720
φ(n) — Euler's totient
383,680
Sum of prime factors
1,125

Primality

Prime factorization: 2 3 × 5 × 23 × 1091

Nearest primes: 1,003,711 (−9) · 1,003,729 (+9)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 23 · 40 · 46 · 92 · 115 · 184 · 230 · 460 · 920 · 1091 · 2182 · 4364 · 5455 · 8728 · 10910 · 21820 · 25093 · 43640 · 50186 · 100372 · 125465 · 200744 · 250930 · 501860 (half) · 1003720
Aliquot sum (sum of proper divisors): 1,355,000
Factor pairs (a × b = 1,003,720)
1 × 1003720
2 × 501860
4 × 250930
5 × 200744
8 × 125465
10 × 100372
20 × 50186
23 × 43640
40 × 25093
46 × 21820
92 × 10910
115 × 8728
184 × 5455
230 × 4364
460 × 2182
920 × 1091
First multiples
1,003,720 · 2,007,440 (double) · 3,011,160 · 4,014,880 · 5,018,600 · 6,022,320 · 7,026,040 · 8,029,760 · 9,033,480 · 10,037,200

Sums & aliquot sequence

As consecutive integers: 200,742 + 200,743 + 200,744 + 200,745 + 200,746 62,725 + 62,726 + … + 62,740 43,629 + 43,630 + … + 43,651 12,507 + 12,508 + … + 12,586
Aliquot sequence: 1,003,720 1,355,000 1,831,480 3,053,000 4,360,120 5,968,280 8,168,920 10,292,600 14,114,320 22,615,472 27,708,688 39,251,312 36,798,136 35,830,064 35,904,928 34,782,962 17,391,484 — unresolved within range

Continued fraction of √n

√1,003,720 = [1001; (1, 6, 17, 1, 9, 1, 17, 6, 1, 2002)]

Period length 10 — the block in parentheses repeats forever.

Representations

In words
one million three thousand seven hundred twenty
Ordinal
1003720th
Binary
11110101000011001000
Octal
3650310
Hexadecimal
0xF50C8
Base64
D1DI
One's complement
4,293,963,575 (32-bit)
Scientific notation
1.00372 × 10⁶
As a duration
1,003,720 s = 11 days, 14 hours, 48 minutes, 40 seconds
In other bases
ternary (3) 1212222211211
quaternary (4) 3311003020
quinary (5) 224104340
senary (6) 33302504
septenary (7) 11350204
nonary (9) 1788754
undecimal (11) 626123
duodecimal (12) 404a34
tridecimal (13) 291b23
tetradecimal (14) 1c1b04
pentadecimal (15) 14c5ea

As an angle

1,003,720° = 2,788 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百萬三千七百二十
Chinese (financial)
壹佰萬參仟柒佰貳拾
In other modern scripts
Eastern Arabic ١٠٠٣٧٢٠ Devanagari १००३७२० Bengali ১০০৩৭২০ Tamil ௧௦௦௩௭௨௦ Thai ๑๐๐๓๗๒๐ Tibetan ༡༠༠༣༧༢༠ Khmer ១០០៣៧២០ Lao ໑໐໐໓໗໒໐ Burmese ၁၀၀၃၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1003720, here are decompositions:

  • 41 + 1003679 = 1003720
  • 89 + 1003631 = 1003720
  • 101 + 1003619 = 1003720
  • 131 + 1003589 = 1003720
  • 251 + 1003469 = 1003720
  • 257 + 1003463 = 1003720
  • 353 + 1003367 = 1003720
  • 359 + 1003361 = 1003720

Showing the first eight; more decompositions exist.

Hex color
#0F50C8
RGB(15, 80, 200)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.80.200.

Address
0.15.80.200
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.80.200

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 1,003,720 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°.