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1,051,572

1,051,572 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.).

1,051,572 (one million fifty-one thousand five hundred seventy-two) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 3 × 87,631. Its proper divisors sum to 1,402,124, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x100BB4.

Abundant Number Cube-Free Evil Number Gapful Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
21 bits
Reversed
2,751,501
Square (n²)
1,105,803,671,184
Cube (n³)
1,162,832,178,114,301,248
Divisor count
12
σ(n) — sum of divisors
2,453,696
φ(n) — Euler's totient
350,520
Sum of prime factors
87,638

Primality

Prime factorization: 2 2 × 3 × 87631

Nearest primes: 1,051,571 (−1) · 1,051,591 (+19)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 87631 · 175262 · 262893 · 350524 · 525786 (half) · 1051572
Aliquot sum (sum of proper divisors): 1,402,124
Factor pairs (a × b = 1,051,572)
1 × 1051572
2 × 525786
3 × 350524
4 × 262893
6 × 175262
12 × 87631
First multiples
1,051,572 · 2,103,144 (double) · 3,154,716 · 4,206,288 · 5,257,860 · 6,309,432 · 7,361,004 · 8,412,576 · 9,464,148 · 10,515,720

Sums & aliquot sequence

As consecutive integers: 350,523 + 350,524 + 350,525 131,443 + 131,444 + … + 131,450 43,804 + 43,805 + … + 43,827
Aliquot sequence: 1,051,572 1,402,124 1,190,200 1,834,160 2,491,456 2,903,504 3,018,736 3,665,856 6,223,888 6,931,520 9,574,924 7,204,020 12,967,404 17,862,276 23,884,828 21,713,564 17,937,460 — unresolved within range

Continued fraction of √n

√1,051,572 = [1025; (2, 6, 19, 73, 5, 7, 1, 9, 1, 2, 1, 41, 8, 1, 33, 1, 6, 1, 4, 1, 3, 2, 4, 1, …)]

Representations

In words
one million fifty-one thousand five hundred seventy-two
Ordinal
1051572nd
Binary
100000000101110110100
Octal
4005664
Hexadecimal
0x100BB4
Base64
EAu0
One's complement
4,293,915,723 (32-bit)
Scientific notation
1.051572 × 10⁶
As a duration
1,051,572 s = 12 days, 4 hours, 6 minutes, 12 seconds
In other bases
ternary (3) 1222102111010
quaternary (4) 10000232310
quinary (5) 232122242
senary (6) 34312220
septenary (7) 11636544
nonary (9) 1872433
undecimal (11) 659075
duodecimal (12) 428670
tridecimal (13) 2aa842
tetradecimal (14) 1d5324
pentadecimal (15) 15b89c

As an angle

1,051,572° = 2,921 × 360° + 12°
12° ≈ 0.209 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零五萬一千五百七十二
Chinese (financial)
壹佰零伍萬壹仟伍佰柒拾貳
In other modern scripts
Eastern Arabic ١٠٥١٥٧٢ Devanagari १०५१५७२ Bengali ১০৫১৫৭২ Tamil ௧௦௫௧௫௭௨ Thai ๑๐๕๑๕๗๒ Tibetan ༡༠༥༡༥༧༢ Khmer ១០៥១៥៧២ Lao ໑໐໕໑໕໗໒ Burmese ၁၀၅၁၅၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1051572, here are decompositions:

  • 13 + 1051559 = 1051572
  • 19 + 1051553 = 1051572
  • 23 + 1051549 = 1051572
  • 29 + 1051543 = 1051572
  • 73 + 1051499 = 1051572
  • 101 + 1051471 = 1051572
  • 103 + 1051469 = 1051572
  • 113 + 1051459 = 1051572

Showing the first eight; more decompositions exist.

Hex color
#100BB4
RGB(16, 11, 180)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.11.180.

Address
0.16.11.180
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.11.180

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 5, 1572 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1572-05-01 (DMMYYYY (Euro, single-digit day))
  • 1572-10-05 (MMDYYYY (US, single-digit day))
  • 1572-05-10 (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 1,051,572 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°.