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170,420

170,420 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.).

170,420 (one hundred seventy thousand four hundred twenty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 8,521. Its proper divisors sum to 187,504, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x299B4.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
18 bits
Reversed
24,071
Recamán's sequence
a(470,447) = 170,420
Square (n²)
29,042,976,400
Cube (n³)
4,949,504,038,088,000
Divisor count
12
σ(n) — sum of divisors
357,924
φ(n) — Euler's totient
68,160
Sum of prime factors
8,530

Primality

Prime factorization: 2 2 × 5 × 8521

Nearest primes: 170,413 (−7) · 170,441 (+21)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 8521 · 17042 · 34084 · 42605 · 85210 (half) · 170420
Aliquot sum (sum of proper divisors): 187,504
Factor pairs (a × b = 170,420)
1 × 170420
2 × 85210
4 × 42605
5 × 34084
10 × 17042
20 × 8521
First multiples
170,420 · 340,840 (double) · 511,260 · 681,680 · 852,100 · 1,022,520 · 1,192,940 · 1,363,360 · 1,533,780 · 1,704,200

Sums & aliquot sequence

As a sum of two squares: 26² + 412² = 268² + 314²
As consecutive integers: 34,082 + 34,083 + 34,084 + 34,085 + 34,086 21,299 + 21,300 + … + 21,306 4,241 + 4,242 + … + 4,280
Aliquot sequence: 170,420 187,504 175,816 153,854 82,426 41,216 56,896 73,152 138,176 154,432 170,688 349,504 365,760 902,208 1,568,704 1,584,960 3,877,056 — unresolved within range

Continued fraction of √n

√170,420 = [412; (1, 4, 1, 1, 5, 2, 1, 1, 6, 1, 1, 9, 1, 3, 1, 1, 1, 10, 4, 1, 1, 12, 1, 50, …)]

Representations

In words
one hundred seventy thousand four hundred twenty
Ordinal
170420th
Binary
101001100110110100
Octal
514664
Hexadecimal
0x299B4
Base64
Apm0
One's complement
4,294,796,875 (32-bit)
Scientific notation
1.7042 × 10⁵
As a duration
170,420 s = 1 day, 23 hours, 20 minutes, 20 seconds
In other bases
ternary (3) 22122202212
quaternary (4) 221212310
quinary (5) 20423140
senary (6) 3352552
septenary (7) 1306565
nonary (9) 278685
undecimal (11) 107048
duodecimal (12) 82758
tridecimal (13) 5c753
tetradecimal (14) 4616c
pentadecimal (15) 35765

As an angle

170,420° = 473 × 360° + 140°
140° ≈ 2.443 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵ρουκʹ
Chinese
一十七萬零四百二十
Chinese (financial)
壹拾柒萬零肆佰貳拾
In other modern scripts
Eastern Arabic ١٧٠٤٢٠ Devanagari १७०४२० Bengali ১৭০৪২০ Tamil ௧௭௦௪௨௦ Thai ๑๗๐๔๒๐ Tibetan ༡༧༠༤༢༠ Khmer ១៧០៤២០ Lao ໑໗໐໔໒໐ Burmese ၁၇၀၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 170420, here are decompositions:

  • 7 + 170413 = 170420
  • 31 + 170389 = 170420
  • 37 + 170383 = 170420
  • 67 + 170353 = 170420
  • 73 + 170347 = 170420
  • 79 + 170341 = 170420
  • 127 + 170293 = 170420
  • 157 + 170263 = 170420

Showing the first eight; more decompositions exist.

Unicode codepoint
𩦴
CJK Unified Ideograph-299B4
U+299B4
Other letter (Lo)

UTF-8 encoding: F0 A9 A6 B4 (4 bytes).

Hex color
#0299B4
RGB(2, 153, 180)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.153.180.

Address
0.2.153.180
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.153.180

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 170,420 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 170420 first appears in π at position 260,124 of the decimal expansion (the 260,124ordinal-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°.