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172,984

172,984 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.).

172,984 (one hundred seventy-two thousand nine hundred eighty-four) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 7 × 3,089. Its proper divisors sum to 197,816, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2A3B8.

Abundant Number Arithmetic Number Gapful Number Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
31
Digit product
4,032
Digital root
4
Palindrome
No
Bit width
18 bits
Reversed
489,271
Square (n²)
29,923,464,256
Cube (n³)
5,176,280,540,859,904
Divisor count
16
σ(n) — sum of divisors
370,800
φ(n) — Euler's totient
74,112
Sum of prime factors
3,102

Primality

Prime factorization: 2 3 × 7 × 3089

Nearest primes: 172,981 (−3) · 172,987 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 7 · 8 · 14 · 28 · 56 · 3089 · 6178 · 12356 · 21623 · 24712 · 43246 · 86492 (half) · 172984
Aliquot sum (sum of proper divisors): 197,816
Factor pairs (a × b = 172,984)
1 × 172984
2 × 86492
4 × 43246
7 × 24712
8 × 21623
14 × 12356
28 × 6178
56 × 3089
First multiples
172,984 · 345,968 (double) · 518,952 · 691,936 · 864,920 · 1,037,904 · 1,210,888 · 1,383,872 · 1,556,856 · 1,729,840

Sums & aliquot sequence

As consecutive integers: 24,709 + 24,710 + … + 24,715 10,804 + 10,805 + … + 10,819 1,489 + 1,490 + … + 1,600
Aliquot sequence: 172,984 197,816 178,984 182,636 136,984 119,876 99,196 74,404 76,796 59,956 53,136 104,406 104,418 121,860 248,328 424,422 614,538 — unresolved within range

Continued fraction of √n

√172,984 = [415; (1, 10, 1, 1, 4, 10, 20, 1, 2, 3, 4, 3, 9, 3, 1, 32, 1, 1, 14, 1, 1, 1, 1, 1, …)]

Representations

In words
one hundred seventy-two thousand nine hundred eighty-four
Ordinal
172984th
Binary
101010001110111000
Octal
521670
Hexadecimal
0x2A3B8
Base64
AqO4
One's complement
4,294,794,311 (32-bit)
Scientific notation
1.72984 × 10⁵
As a duration
172,984 s = 2 days, 3 minutes, 4 seconds
In other bases
ternary (3) 22210021211
quaternary (4) 222032320
quinary (5) 21013414
senary (6) 3412504
septenary (7) 1320220
nonary (9) 283254
undecimal (11) 108a69
duodecimal (12) 84134
tridecimal (13) 60976
tetradecimal (14) 47080
pentadecimal (15) 363c4

As an angle

172,984° = 480 × 360° + 184°
184° ≈ 3.211 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ροβϡπδʹ
Chinese
一十七萬二千九百八十四
Chinese (financial)
壹拾柒萬貳仟玖佰捌拾肆
In other modern scripts
Eastern Arabic ١٧٢٩٨٤ Devanagari १७२९८४ Bengali ১৭২৯৮৪ Tamil ௧௭௨௯௮௪ Thai ๑๗๒๙๘๔ Tibetan ༡༧༢༩༨༤ Khmer ១៧២៩៨៤ Lao ໑໗໒໙໘໔ Burmese ၁၇၂၉၈၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 172984, here are decompositions:

  • 3 + 172981 = 172984
  • 11 + 172973 = 172984
  • 101 + 172883 = 172984
  • 107 + 172877 = 172984
  • 113 + 172871 = 172984
  • 131 + 172853 = 172984
  • 197 + 172787 = 172984
  • 233 + 172751 = 172984

Showing the first eight; more decompositions exist.

Unicode codepoint
𪎸
CJK Unified Ideograph-2A3B8
U+2A3B8
Other letter (Lo)

UTF-8 encoding: F0 AA 8E B8 (4 bytes).

Hex color
#02A3B8
RGB(2, 163, 184)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.163.184.

Address
0.2.163.184
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.163.184

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 172,984 and was likely granted around 1874.

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

Position in π

The digit sequence 172984 first appears in π at position 240,934 of the decimal expansion (the 240,934ordinal-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°.