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1,012,390

1,012,390 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.).

1,012,390 (one million twelve thousand three hundred ninety) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 29 × 3,491. Written other ways, in hexadecimal, 0xF72A6.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
932,101
Square (n²)
1,024,933,512,100
Cube (n³)
1,037,632,438,314,919,000
Divisor count
16
σ(n) — sum of divisors
1,885,680
φ(n) — Euler's totient
390,880
Sum of prime factors
3,527

Primality

Prime factorization: 2 × 5 × 29 × 3491

Nearest primes: 1,012,379 (−11) · 1,012,397 (+7)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 10 · 29 · 58 · 145 · 290 · 3491 · 6982 · 17455 · 34910 · 101239 · 202478 · 506195 (half) · 1012390
Aliquot sum (sum of proper divisors): 873,290
Factor pairs (a × b = 1,012,390)
1 × 1012390
2 × 506195
5 × 202478
10 × 101239
29 × 34910
58 × 17455
145 × 6982
290 × 3491
First multiples
1,012,390 · 2,024,780 (double) · 3,037,170 · 4,049,560 · 5,061,950 · 6,074,340 · 7,086,730 · 8,099,120 · 9,111,510 · 10,123,900

Sums & aliquot sequence

As consecutive integers: 253,096 + 253,097 + 253,098 + 253,099 202,476 + 202,477 + 202,478 + 202,479 + 202,480 50,610 + 50,611 + … + 50,629 34,896 + 34,897 + … + 34,924
Aliquot sequence: 1,012,390 873,290 946,294 473,150 407,002 207,194 129,892 129,948 272,244 468,300 1,087,156 1,142,540 1,599,892 1,599,948 3,109,848 5,910,312 9,036,888 — unresolved within range

Continued fraction of √n

√1,012,390 = [1006; (5, 1, 2, 6, 28, 5, 2, 1, 1, 2, 1, 10, 1, 1, 11, 1, 2, 15, 3, 1, 7, 1, 22, 1, …)]

Representations

In words
one million twelve thousand three hundred ninety
Ordinal
1012390th
Binary
11110111001010100110
Octal
3671246
Hexadecimal
0xF72A6
Base64
D3Km
One's complement
4,293,954,905 (32-bit)
Scientific notation
1.01239 × 10⁶
As a duration
1,012,390 s = 11 days, 17 hours, 13 minutes, 10 seconds
In other bases
ternary (3) 1220102201221
quaternary (4) 3313022212
quinary (5) 224344030
senary (6) 33410554
septenary (7) 11414401
nonary (9) 1812657
undecimal (11) 631695
duodecimal (12) 409a5a
tridecimal (13) 295a62
tetradecimal (14) 1c4d38
pentadecimal (15) 14ee7a

As an angle

1,012,390° = 2,812 × 360° + 70°
70° ≈ 1.222 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零一萬二千三百九十
Chinese (financial)
壹佰零壹萬貳仟參佰玖拾
In other modern scripts
Eastern Arabic ١٠١٢٣٩٠ Devanagari १०१२३९० Bengali ১০১২৩৯০ Tamil ௧௦௧௨௩௯௦ Thai ๑๐๑๒๓๙๐ Tibetan ༡༠༡༢༣༩༠ Khmer ១០១២៣៩០ Lao ໑໐໑໒໓໙໐ Burmese ၁၀၁၂၃၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1012390, here are decompositions:

  • 11 + 1012379 = 1012390
  • 17 + 1012373 = 1012390
  • 83 + 1012307 = 1012390
  • 101 + 1012289 = 1012390
  • 131 + 1012259 = 1012390
  • 149 + 1012241 = 1012390
  • 173 + 1012217 = 1012390
  • 257 + 1012133 = 1012390

Showing the first eight; more decompositions exist.

Hex color
#0F72A6
RGB(15, 114, 166)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.114.166.

Address
0.15.114.166
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.114.166

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 2390 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 2390-10-01 (MMDYYYY (US, single-digit day))
  • 2390-01-10 (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 1,012,390 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°.