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981,002

981,002 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.).

981,002 (nine hundred eighty-one thousand two) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 11 × 17 × 43 × 61. Written other ways, in hexadecimal, 0xEF80A.

Arithmetic Number Cube-Free Deficient Number Evil Number Recamán's Sequence Squarefree

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
200,189
Recamán's sequence
a(324,407) = 981,002
Square (n²)
962,364,924,004
Cube (n³)
944,081,915,177,772,008
Divisor count
32
σ(n) — sum of divisors
1,767,744
φ(n) — Euler's totient
403,200
Sum of prime factors
134

Primality

Prime factorization: 2 × 11 × 17 × 43 × 61

Nearest primes: 980,999 (−3) · 981,011 (+9)

Divisors & multiples

All divisors (32)
1 · 2 · 11 · 17 · 22 · 34 · 43 · 61 · 86 · 122 · 187 · 374 · 473 · 671 · 731 · 946 · 1037 · 1342 · 1462 · 2074 · 2623 · 5246 · 8041 · 11407 · 16082 · 22814 · 28853 · 44591 · 57706 · 89182 · 490501 (half) · 981002
Aliquot sum (sum of proper divisors): 786,742
Factor pairs (a × b = 981,002)
1 × 981002
2 × 490501
11 × 89182
17 × 57706
22 × 44591
34 × 28853
43 × 22814
61 × 16082
86 × 11407
122 × 8041
187 × 5246
374 × 2623
473 × 2074
671 × 1462
731 × 1342
946 × 1037
First multiples
981,002 · 1,962,004 (double) · 2,943,006 · 3,924,008 · 4,905,010 · 5,886,012 · 6,867,014 · 7,848,016 · 8,829,018 · 9,810,020

Sums & aliquot sequence

As consecutive integers: 245,249 + 245,250 + 245,251 + 245,252 89,177 + 89,178 + … + 89,187 57,698 + 57,699 + … + 57,714 22,793 + 22,794 + … + 22,835
Aliquot sequence: 981,002 786,742 510,806 281,914 154,694 77,350 110,138 78,694 73,154 38,206 27,314 19,534 9,770 7,834 3,920 6,682 4,154 — unresolved within range

Continued fraction of √n

√981,002 = [990; (2, 5, 8, 1, 17, 1, 3, 1, 11, 1, 1, 41, 1, 1, 1, 2, 8, 1, 3, 18, 1, 39, 2, 11, …)]

Representations

In words
nine hundred eighty-one thousand two
Ordinal
981002nd
Binary
11101111100000001010
Octal
3574012
Hexadecimal
0xEF80A
Base64
DvgK
One's complement
4,293,986,293 (32-bit)
Scientific notation
9.81002 × 10⁵
As a duration
981,002 s = 11 days, 8 hours, 30 minutes, 2 seconds
In other bases
ternary (3) 1211211200102
quaternary (4) 3233200022
quinary (5) 222343002
senary (6) 33005402
septenary (7) 11224031
nonary (9) 1754612
undecimal (11) 610050
duodecimal (12) 3b3862
tridecimal (13) 284699
tetradecimal (14) 1b7718
pentadecimal (15) 145a02

As an angle

981,002° = 2,725 × 360° + 2°
2° ≈ 0.035 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋 𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓏺𓏺
Greek (Milesian)
͵ϡπαβʹ
Chinese
九十八萬一千零二
Chinese (financial)
玖拾捌萬壹仟零貳
In other modern scripts
Eastern Arabic ٩٨١٠٠٢ Devanagari ९८१००२ Bengali ৯৮১০০২ Tamil ௯௮௧௦௦௨ Thai ๙๘๑๐๐๒ Tibetan ༩༨༡༠༠༢ Khmer ៩៨១០០២ Lao ໙໘໑໐໐໒ Burmese ၉၈၁၀၀၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 981002, here are decompositions:

  • 3 + 980999 = 981002
  • 103 + 980899 = 981002
  • 109 + 980893 = 981002
  • 151 + 980851 = 981002
  • 199 + 980803 = 981002
  • 229 + 980773 = 981002
  • 271 + 980731 = 981002
  • 283 + 980719 = 981002

Showing the first eight; more decompositions exist.

Hex color
#0EF80A
RGB(14, 248, 10)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.14.248.10.

Address
0.14.248.10
Class
reserved
IPv4-mapped IPv6
::ffff:0.14.248.10

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 981,002 and was likely granted around 1910.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 981002 first appears in π at position 929,004 of the decimal expansion (the 929,004ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.