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172,104

172,104 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.).

172,104 (one hundred seventy-two thousand one hundred four) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 71 × 101. Its proper divisors sum to 268,536, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2A048.

Abundant Number Arithmetic Number Odious Number Pernicious Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
18 bits
Reversed
401,271
Recamán's sequence
a(191,556) = 172,104
Square (n²)
29,619,786,816
Cube (n³)
5,097,683,790,180,864
Divisor count
32
σ(n) — sum of divisors
440,640
φ(n) — Euler's totient
56,000
Sum of prime factors
181

Primality

Prime factorization: 2 3 × 3 × 71 × 101

Nearest primes: 172,097 (−7) · 172,127 (+23)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 24 · 71 · 101 · 142 · 202 · 213 · 284 · 303 · 404 · 426 · 568 · 606 · 808 · 852 · 1212 · 1704 · 2424 · 7171 · 14342 · 21513 · 28684 · 43026 · 57368 · 86052 (half) · 172104
Aliquot sum (sum of proper divisors): 268,536
Factor pairs (a × b = 172,104)
1 × 172104
2 × 86052
3 × 57368
4 × 43026
6 × 28684
8 × 21513
12 × 14342
24 × 7171
71 × 2424
101 × 1704
142 × 1212
202 × 852
213 × 808
284 × 606
303 × 568
404 × 426
First multiples
172,104 · 344,208 (double) · 516,312 · 688,416 · 860,520 · 1,032,624 · 1,204,728 · 1,376,832 · 1,548,936 · 1,721,040

Sums & aliquot sequence

As consecutive integers: 57,367 + 57,368 + 57,369 10,749 + 10,750 + … + 10,764 3,562 + 3,563 + … + 3,609 2,389 + 2,390 + … + 2,459
Aliquot sequence: 172,104 268,536 416,904 663,096 1,231,944 2,288,376 4,084,224 6,800,496 10,767,576 16,842,624 29,865,216 51,845,728 59,505,512 66,768,088 58,422,092 45,477,508 34,108,138 — unresolved within range

Continued fraction of √n

√172,104 = [414; (1, 5, 1, 6, 17, 1, 1, 32, 1, 2, 14, 2, 11, 1, 2, 1, 1, 4, 2, 1, 35, 2, 1, 1, …)]

Representations

In words
one hundred seventy-two thousand one hundred four
Ordinal
172104th
Binary
101010000001001000
Octal
520110
Hexadecimal
0x2A048
Base64
AqBI
One's complement
4,294,795,191 (32-bit)
Scientific notation
1.72104 × 10⁵
As a duration
172,104 s = 1 day, 23 hours, 48 minutes, 24 seconds
In other bases
ternary (3) 22202002020
quaternary (4) 222001020
quinary (5) 21001404
senary (6) 3404440
septenary (7) 1314522
nonary (9) 282066
undecimal (11) 108339
duodecimal (12) 83720
tridecimal (13) 6044a
tetradecimal (14) 46a12
pentadecimal (15) 35ed9

As an angle

172,104° = 478 × 360° + 24°
24° ≈ 0.419 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ροβρδʹ
Chinese
一十七萬二千一百零四
Chinese (financial)
壹拾柒萬貳仟壹佰零肆
In other modern scripts
Eastern Arabic ١٧٢١٠٤ Devanagari १७२१०४ Bengali ১৭২১০৪ Tamil ௧௭௨௧௦௪ Thai ๑๗๒๑๐๔ Tibetan ༡༧༢༡༠༤ Khmer ១៧២១០៤ Lao ໑໗໒໑໐໔ Burmese ၁၇၂၁၀၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 172104, here are decompositions:

  • 7 + 172097 = 172104
  • 11 + 172093 = 172104
  • 73 + 172031 = 172104
  • 83 + 172021 = 172104
  • 103 + 172001 = 172104
  • 157 + 171947 = 172104
  • 167 + 171937 = 172104
  • 181 + 171923 = 172104

Showing the first eight; more decompositions exist.

Unicode codepoint
𪁈
CJK Unified Ideograph-2A048
U+2A048
Other letter (Lo)

UTF-8 encoding: F0 AA 81 88 (4 bytes).

Hex color
#02A048
RGB(2, 160, 72)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.160.72.

Address
0.2.160.72
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.160.72

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 172,104 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 172104 first appears in π at position 28,524 of the decimal expansion (the 28,524ordinal-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°.