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171,020

171,020 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.).

171,020 (one hundred seventy-one thousand twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 17 × 503. Its proper divisors sum to 210,004, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x29C0C.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
20,171
Recamán's sequence
a(193,724) = 171,020
Square (n²)
29,247,840,400
Cube (n³)
5,001,965,665,208,000
Divisor count
24
σ(n) — sum of divisors
381,024
φ(n) — Euler's totient
64,256
Sum of prime factors
529

Primality

Prime factorization: 2 2 × 5 × 17 × 503

Nearest primes: 171,007 (−13) · 171,023 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 17 · 20 · 34 · 68 · 85 · 170 · 340 · 503 · 1006 · 2012 · 2515 · 5030 · 8551 · 10060 · 17102 · 34204 · 42755 · 85510 (half) · 171020
Aliquot sum (sum of proper divisors): 210,004
Factor pairs (a × b = 171,020)
1 × 171020
2 × 85510
4 × 42755
5 × 34204
10 × 17102
17 × 10060
20 × 8551
34 × 5030
68 × 2515
85 × 2012
170 × 1006
340 × 503
First multiples
171,020 · 342,040 (double) · 513,060 · 684,080 · 855,100 · 1,026,120 · 1,197,140 · 1,368,160 · 1,539,180 · 1,710,200

Sums & aliquot sequence

As consecutive integers: 34,202 + 34,203 + 34,204 + 34,205 + 34,206 21,374 + 21,375 + … + 21,381 10,052 + 10,053 + … + 10,068 4,256 + 4,257 + … + 4,295
Aliquot sequence: 171,020 210,004 157,510 141,290 117,910 110,906 62,758 31,382 23,050 19,916 17,716 14,316 19,116 31,704 47,616 83,328 177,792 — unresolved within range

Continued fraction of √n

√171,020 = [413; (1, 1, 4, 1, 42, 1, 2, 2, 14, 1, 1, 1, 1, 3, 2, 3, 5, 1, 3, 1, 3, 1, 1, 6, …)]

Representations

In words
one hundred seventy-one thousand twenty
Ordinal
171020th
Binary
101001110000001100
Octal
516014
Hexadecimal
0x29C0C
Base64
ApwM
One's complement
4,294,796,275 (32-bit)
Scientific notation
1.7102 × 10⁵
As a duration
171,020 s = 1 day, 23 hours, 30 minutes, 20 seconds
In other bases
ternary (3) 22200121002
quaternary (4) 221300030
quinary (5) 20433040
senary (6) 3355432
septenary (7) 1311413
nonary (9) 280532
undecimal (11) 107543
duodecimal (12) 82b78
tridecimal (13) 5cac5
tetradecimal (14) 4647a
pentadecimal (15) 35a15
Palindromic in base 13

As an angle

171,020° = 475 × 360° + 20°
20° ≈ 0.349 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓎆𓎆
Greek (Milesian)
͵ροακʹ
Chinese
一十七萬一千零二十
Chinese (financial)
壹拾柒萬壹仟零貳拾
In other modern scripts
Eastern Arabic ١٧١٠٢٠ Devanagari १७१०२० Bengali ১৭১০২০ Tamil ௧௭௧௦௨௦ Thai ๑๗๑๐๒๐ Tibetan ༡༧༡༠༢༠ Khmer ១៧១០២០ Lao ໑໗໑໐໒໐ Burmese ၁၇၁၀၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 171020, here are decompositions:

  • 13 + 171007 = 171020
  • 67 + 170953 = 171020
  • 139 + 170881 = 171020
  • 163 + 170857 = 171020
  • 193 + 170827 = 171020
  • 211 + 170809 = 171020
  • 271 + 170749 = 171020
  • 313 + 170707 = 171020

Showing the first eight; more decompositions exist.

Unicode codepoint
𩰌
CJK Unified Ideograph-29C0C
U+29C0C
Other letter (Lo)

UTF-8 encoding: F0 A9 B0 8C (4 bytes).

Hex color
#029C0C
RGB(2, 156, 12)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.156.12.

Address
0.2.156.12
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.156.12

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 171,020 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 171020 first appears in π at position 799,821 of the decimal expansion (the 799,821ordinal-suffix:st 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°.