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172,340

172,340 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.).

172,340 (one hundred seventy-two thousand three hundred forty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 7 × 1,231. Its proper divisors sum to 241,612, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2A134.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
18 bits
Reversed
43,271
Recamán's sequence
a(191,084) = 172,340
Square (n²)
29,701,075,600
Cube (n³)
5,118,683,368,904,000
Divisor count
24
σ(n) — sum of divisors
413,952
φ(n) — Euler's totient
59,040
Sum of prime factors
1,247

Primality

Prime factorization: 2 2 × 5 × 7 × 1231

Nearest primes: 172,331 (−9) · 172,343 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 28 · 35 · 70 · 140 · 1231 · 2462 · 4924 · 6155 · 8617 · 12310 · 17234 · 24620 · 34468 · 43085 · 86170 (half) · 172340
Aliquot sum (sum of proper divisors): 241,612
Factor pairs (a × b = 172,340)
1 × 172340
2 × 86170
4 × 43085
5 × 34468
7 × 24620
10 × 17234
14 × 12310
20 × 8617
28 × 6155
35 × 4924
70 × 2462
140 × 1231
First multiples
172,340 · 344,680 (double) · 517,020 · 689,360 · 861,700 · 1,034,040 · 1,206,380 · 1,378,720 · 1,551,060 · 1,723,400

Sums & aliquot sequence

As consecutive integers: 34,466 + 34,467 + 34,468 + 34,469 + 34,470 24,617 + 24,618 + … + 24,623 21,539 + 21,540 + … + 21,546 4,907 + 4,908 + … + 4,941
Aliquot sequence: 172,340 241,612 241,668 474,138 738,918 862,110 1,534,050 3,185,886 3,765,282 3,765,294 5,020,938 6,991,062 8,395,050 12,425,046 12,846,954 12,846,966 15,651,210 — unresolved within range

Continued fraction of √n

√172,340 = [415; (7, 4, 1, 1, 2, 1, 5, 1, 1, 1, 1, 1, 2, 6, 2, 12, 3, 4, 2, 1, 1, 4, 1, 51, …)]

Representations

In words
one hundred seventy-two thousand three hundred forty
Ordinal
172340th
Binary
101010000100110100
Octal
520464
Hexadecimal
0x2A134
Base64
AqE0
One's complement
4,294,794,955 (32-bit)
Scientific notation
1.7234 × 10⁵
As a duration
172,340 s = 1 day, 23 hours, 52 minutes, 20 seconds
In other bases
ternary (3) 22202101222
quaternary (4) 222010310
quinary (5) 21003330
senary (6) 3405512
septenary (7) 1315310
nonary (9) 282358
undecimal (11) 108533
duodecimal (12) 83898
tridecimal (13) 6059c
tetradecimal (14) 46b40
pentadecimal (15) 360e5

As an angle

172,340° = 478 × 360° + 260°
260° ≈ 4.538 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ροβτμʹ
Chinese
一十七萬二千三百四十
Chinese (financial)
壹拾柒萬貳仟參佰肆拾
In other modern scripts
Eastern Arabic ١٧٢٣٤٠ Devanagari १७२३४० Bengali ১৭২৩৪০ Tamil ௧௭௨௩௪௦ Thai ๑๗๒๓๔๐ Tibetan ༡༧༢༣༤༠ Khmer ១៧២៣៤០ Lao ໑໗໒໓໔໐ Burmese ၁၇၂၃၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 172340, here are decompositions:

  • 19 + 172321 = 172340
  • 43 + 172297 = 172340
  • 61 + 172279 = 172340
  • 97 + 172243 = 172340
  • 127 + 172213 = 172340
  • 193 + 172147 = 172340
  • 271 + 172069 = 172340
  • 313 + 172027 = 172340

Showing the first eight; more decompositions exist.

Unicode codepoint
𪄴
CJK Unified Ideograph-2A134
U+2A134
Other letter (Lo)

UTF-8 encoding: F0 AA 84 B4 (4 bytes).

Hex color
#02A134
RGB(2, 161, 52)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.161.52.

Address
0.2.161.52
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.161.52

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 172,340 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 172340 first appears in π at position 57,037 of the decimal expansion (the 57,037ordinal-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°.