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1,031,720

1,031,720 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.).

1,031,720 (one million thirty-one thousand seven hundred twenty) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 25,793. Its proper divisors sum to 1,289,740, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFBE28.

Abundant Number Evil Number Gapful Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
271,301
Square (n²)
1,064,446,158,400
Cube (n³)
1,098,210,390,544,448,000
Divisor count
16
σ(n) — sum of divisors
2,321,460
φ(n) — Euler's totient
412,672
Sum of prime factors
25,804

Primality

Prime factorization: 2 3 × 5 × 25793

Nearest primes: 1,031,717 (−3) · 1,031,729 (+9)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 25793 · 51586 · 103172 · 128965 · 206344 · 257930 · 515860 (half) · 1031720
Aliquot sum (sum of proper divisors): 1,289,740
Factor pairs (a × b = 1,031,720)
1 × 1031720
2 × 515860
4 × 257930
5 × 206344
8 × 128965
10 × 103172
20 × 51586
40 × 25793
First multiples
1,031,720 · 2,063,440 (double) · 3,095,160 · 4,126,880 · 5,158,600 · 6,190,320 · 7,222,040 · 8,253,760 · 9,285,480 · 10,317,200

Sums & aliquot sequence

As a sum of two squares: 326² + 962² = 574² + 838²
As consecutive integers: 206,342 + 206,343 + 206,344 + 206,345 + 206,346 64,475 + 64,476 + … + 64,490 12,857 + 12,858 + … + 12,936
Aliquot sequence: 1,031,720 1,289,740 1,467,140 1,646,740 1,842,452 1,541,068 1,155,808 1,240,712 1,411,768 1,261,232 1,531,744 1,513,424 1,685,776 1,580,446 1,177,442 906,910 745,490 — unresolved within range

Continued fraction of √n

√1,031,720 = [1015; (1, 2, 1, 3, 1, 3, 2, 3, 3, 2, 507, 2, 3, 3, 2, 3, 1, 3, 1, 2, 1, 2030)]

Period length 22 — the block in parentheses repeats forever.

Representations

In words
one million thirty-one thousand seven hundred twenty
Ordinal
1031720th
Binary
11111011111000101000
Octal
3737050
Hexadecimal
0xFBE28
Base64
D74o
One's complement
4,293,935,575 (32-bit)
Scientific notation
1.03172 × 10⁶
As a duration
1,031,720 s = 11 days, 22 hours, 35 minutes, 20 seconds
In other bases
ternary (3) 1221102020212
quaternary (4) 3323320220
quinary (5) 231003340
senary (6) 34040252
septenary (7) 11524634
nonary (9) 1842225
undecimal (11) 645168
duodecimal (12) 419088
tridecimal (13) 2a17b1
tetradecimal (14) 1cbdc4
pentadecimal (15) 155a65

As an angle

1,031,720° = 2,865 × 360° + 320°
320° ≈ 5.585 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零三萬一千七百二十
Chinese (financial)
壹佰零參萬壹仟柒佰貳拾
In other modern scripts
Eastern Arabic ١٠٣١٧٢٠ Devanagari १०३१७२० Bengali ১০৩১৭২০ Tamil ௧௦௩௧௭௨௦ Thai ๑๐๓๑๗๒๐ Tibetan ༡༠༣༡༧༢༠ Khmer ១០៣១៧២០ Lao ໑໐໓໑໗໒໐ Burmese ၁၀၃၁၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1031720, here are decompositions:

  • 3 + 1031717 = 1031720
  • 13 + 1031707 = 1031720
  • 43 + 1031677 = 1031720
  • 97 + 1031623 = 1031720
  • 127 + 1031593 = 1031720
  • 199 + 1031521 = 1031720
  • 241 + 1031479 = 1031720
  • 307 + 1031413 = 1031720

Showing the first eight; more decompositions exist.

Hex color
#0FBE28
RGB(15, 190, 40)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.190.40.

Address
0.15.190.40
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.190.40

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 3, 1720 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1720-03-01 (DMMYYYY (Euro, single-digit day))
  • 1720-10-03 (MMDYYYY (US, single-digit day))
  • 1720-03-10 (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 1,031,720 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°.