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161,004

161,004 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.).

161,004 (one hundred sixty-one thousand four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 3 × 13,417. Its proper divisors sum to 214,700, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x274EC.

Abundant Number Cube-Free Evil Number Harshad / Niven Moran Number Recamán's Sequence Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
18 bits
Reversed
400,161
Recamán's sequence
a(200,148) = 161,004
Square (n²)
25,922,288,016
Cube (n³)
4,173,592,059,728,064
Divisor count
12
σ(n) — sum of divisors
375,704
φ(n) — Euler's totient
53,664
Sum of prime factors
13,424

Primality

Prime factorization: 2 2 × 3 × 13417

Nearest primes: 160,997 (−7) · 161,009 (+5)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 13417 · 26834 · 40251 · 53668 · 80502 (half) · 161004
Aliquot sum (sum of proper divisors): 214,700
Factor pairs (a × b = 161,004)
1 × 161004
2 × 80502
3 × 53668
4 × 40251
6 × 26834
12 × 13417
First multiples
161,004 · 322,008 (double) · 483,012 · 644,016 · 805,020 · 966,024 · 1,127,028 · 1,288,032 · 1,449,036 · 1,610,040

Sums & aliquot sequence

As consecutive integers: 53,667 + 53,668 + 53,669 20,122 + 20,123 + … + 20,129 6,697 + 6,698 + … + 6,720
Aliquot sequence: 161,004 214,700 280,060 405,380 445,960 557,540 635,092 483,788 362,848 453,632 455,236 341,434 187,334 133,834 70,394 37,114 32,582 — unresolved within range

Continued fraction of √n

√161,004 = [401; (3, 1, 19, 1, 4, 1, 3, 1, 1, 4, 5, 4, 5, 1, 7, 1, 7, 1, 1, 3, 1, 1, 1, 2, …)]

Representations

In words
one hundred sixty-one thousand four
Ordinal
161004th
Binary
100111010011101100
Octal
472354
Hexadecimal
0x274EC
Base64
AnTs
One's complement
4,294,806,291 (32-bit)
Scientific notation
1.61004 × 10⁵
As a duration
161,004 s = 1 day, 20 hours, 43 minutes, 24 seconds
In other bases
ternary (3) 22011212010
quaternary (4) 213103230
quinary (5) 20123004
senary (6) 3241220
septenary (7) 1240254
nonary (9) 264763
undecimal (11) aaa68
duodecimal (12) 79210
tridecimal (13) 5838c
tetradecimal (14) 42964
pentadecimal (15) 32a89

As an angle

161,004° = 447 × 360° + 84°
84° ≈ 1.466 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρξαδʹ
Chinese
一十六萬一千零四
Chinese (financial)
壹拾陸萬壹仟零肆
In other modern scripts
Eastern Arabic ١٦١٠٠٤ Devanagari १६१००४ Bengali ১৬১০০৪ Tamil ௧௬௧௦௦௪ Thai ๑๖๑๐๐๔ Tibetan ༡༦༡༠༠༤ Khmer ១៦១០០៤ Lao ໑໖໑໐໐໔ Burmese ၁၆၁၀၀၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 161004, here are decompositions:

  • 7 + 160997 = 161004
  • 23 + 160981 = 161004
  • 37 + 160967 = 161004
  • 71 + 160933 = 161004
  • 97 + 160907 = 161004
  • 101 + 160903 = 161004
  • 127 + 160877 = 161004
  • 163 + 160841 = 161004

Showing the first eight; more decompositions exist.

Unicode codepoint
𧓬
CJK Unified Ideograph-274Ec
U+274EC
Other letter (Lo)

UTF-8 encoding: F0 A7 93 AC (4 bytes).

Hex color
#0274EC
RGB(2, 116, 236)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.116.236.

Address
0.2.116.236
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.116.236

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 161,004 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 161004 first appears in π at position 403,408 of the decimal expansion (the 403,408ordinal-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°.