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1,015,242

1,015,242 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.).

1,015,242 (one million fifteen thousand two hundred forty-two) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 41 × 4,127. Its proper divisors sum to 1,065,270, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF7DCA.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
2,425,101
Recamán's sequence
a(364,383) = 1,015,242
Square (n²)
1,030,716,318,564
Cube (n³)
1,046,426,496,691,552,488
Divisor count
16
σ(n) — sum of divisors
2,080,512
φ(n) — Euler's totient
330,080
Sum of prime factors
4,173

Primality

Prime factorization: 2 × 3 × 41 × 4127

Nearest primes: 1,015,207 (−35) · 1,015,277 (+35)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 6 · 41 · 82 · 123 · 246 · 4127 · 8254 · 12381 · 24762 · 169207 · 338414 · 507621 (half) · 1015242
Aliquot sum (sum of proper divisors): 1,065,270
Factor pairs (a × b = 1,015,242)
1 × 1015242
2 × 507621
3 × 338414
6 × 169207
41 × 24762
82 × 12381
123 × 8254
246 × 4127
First multiples
1,015,242 · 2,030,484 (double) · 3,045,726 · 4,060,968 · 5,076,210 · 6,091,452 · 7,106,694 · 8,121,936 · 9,137,178 · 10,152,420

Sums & aliquot sequence

As consecutive integers: 338,413 + 338,414 + 338,415 253,809 + 253,810 + 253,811 + 253,812 84,598 + 84,599 + … + 84,609 24,742 + 24,743 + … + 24,782
Aliquot sequence: 1,015,242 1,065,270 1,491,450 2,291,046 2,291,058 4,620,942 5,781,618 7,351,722 11,535,510 20,393,322 21,800,118 21,800,130 37,145,406 37,276,242 39,291,630 70,408,290 108,667,806 — unresolved within range

Continued fraction of √n

√1,015,242 = [1007; (1, 1, 2, 4, 1, 2, 1, 1, 48, 1, 1, 2, 1, 4, 2, 1, 1, 2014)]

Period length 18 — the block in parentheses repeats forever.

Representations

In words
one million fifteen thousand two hundred forty-two
Ordinal
1015242nd
Binary
11110111110111001010
Octal
3676712
Hexadecimal
0xF7DCA
Base64
D33K
One's complement
4,293,952,053 (32-bit)
Scientific notation
1.015242 × 10⁶
As a duration
1,015,242 s = 11 days, 18 hours, 42 seconds
In other bases
ternary (3) 1220120122120
quaternary (4) 3313313022
quinary (5) 224441432
senary (6) 33432110
septenary (7) 11425614
nonary (9) 1816576
undecimal (11) 633848
duodecimal (12) 40b636
tridecimal (13) 297147
tetradecimal (14) 1c5db4
pentadecimal (15) 150c2c

As an angle

1,015,242° = 2,820 × 360° + 42°
42° ≈ 0.733 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 · 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零一萬五千二百四十二
Chinese (financial)
壹佰零壹萬伍仟貳佰肆拾貳
In other modern scripts
Eastern Arabic ١٠١٥٢٤٢ Devanagari १०१५२४२ Bengali ১০১৫২৪২ Tamil ௧௦௧௫௨௪௨ Thai ๑๐๑๕๒๔๒ Tibetan ༡༠༡༥༢༤༢ Khmer ១០១៥២៤២ Lao ໑໐໑໕໒໔໒ Burmese ၁၀၁၅၂၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1015242, here are decompositions:

  • 43 + 1015199 = 1015242
  • 71 + 1015171 = 1015242
  • 79 + 1015163 = 1015242
  • 83 + 1015159 = 1015242
  • 103 + 1015139 = 1015242
  • 149 + 1015093 = 1015242
  • 181 + 1015061 = 1015242
  • 191 + 1015051 = 1015242

Showing the first eight; more decompositions exist.

Hex color
#0F7DCA
RGB(15, 125, 202)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.125.202.

Address
0.15.125.202
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.125.202

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 1, 5242 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 5242-10-01 (MMDYYYY (US, single-digit day))
  • 5242-01-10 (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 1,015,242 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°.