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16,672

16,672 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.).
Deficient Number Odious Number Pernicious Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
22
Digit product
504
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
27,661
Recamán's sequence
a(170,747) = 16,672
Square (n²)
277,955,584
Cube (n³)
4,634,075,496,448
Divisor count
12
σ(n) — sum of divisors
32,886
φ(n) — Euler's totient
8,320
Sum of prime factors
531

Primality

Prime factorization: 2 5 × 521

Nearest primes: 16,661 (−11) · 16,673 (+1)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 8 · 16 · 32 · 521 · 1042 · 2084 · 4168 · 8336 (half) · 16672
Aliquot sum (sum of proper divisors): 16,214
Factor pairs (a × b = 16,672)
1 × 16672
2 × 8336
4 × 4168
8 × 2084
16 × 1042
32 × 521
First multiples
16,672 · 33,344 (double) · 50,016 · 66,688 · 83,360 · 100,032 · 116,704 · 133,376 · 150,048 · 166,720

Sums & aliquot sequence

As a sum of two squares: 36² + 124²
As consecutive integers: 229 + 230 + … + 292
Aliquot sequence: 16,672 16,214 10,918 5,930 4,762 2,384 2,266 1,478 742 554 280 440 640 890 730 602 454 — unresolved within range

Representations

In words
sixteen thousand six hundred seventy-two
Ordinal
16672nd
Binary
100000100100000
Octal
40440
Hexadecimal
0x4120
Base64
QSA=
One's complement
48,863 (16-bit)
In other bases
ternary (3) 211212111
quaternary (4) 10010200
quinary (5) 1013142
senary (6) 205104
septenary (7) 66415
nonary (9) 24774
undecimal (11) 11587
duodecimal (12) 9794
tridecimal (13) 7786
tetradecimal (14) 610c
pentadecimal (15) 4e17

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ιϛχοβʹ
Mayan (base 20)
𝋢·𝋡·𝋭·𝋬
Chinese
一萬六千六百七十二
Chinese (financial)
壹萬陸仟陸佰柒拾貳
In other modern scripts
Eastern Arabic ١٦٦٧٢ Devanagari १६६७२ Bengali ১৬৬৭২ Tamil ௧௬௬௭௨ Thai ๑๖๖๗๒ Tibetan ༡༦༦༧༢ Khmer ១៦៦៧២ Lao ໑໖໖໗໒ Burmese ၁၆၆၇၂

Digit at this position in famous constants

π — Pi (π)
Digit 16,672 = 2
e — Euler's number (e)
Digit 16,672 = 9
φ — Golden ratio (φ)
Digit 16,672 = 3
√2 — Pythagoras's (√2)
Digit 16,672 = 2
ln 2 — Natural log of 2
Digit 16,672 = 5
γ — Euler-Mascheroni (γ)
Digit 16,672 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 16672, here are decompositions:

  • 11 + 16661 = 16672
  • 23 + 16649 = 16672
  • 41 + 16631 = 16672
  • 53 + 16619 = 16672
  • 179 + 16493 = 16672
  • 191 + 16481 = 16672
  • 239 + 16433 = 16672
  • 251 + 16421 = 16672

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-4120
U+4120
Other letter (Lo)

UTF-8 encoding: E4 84 A0 (3 bytes).

Hex color
#004120
RGB(0, 65, 32)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.65.32.

Address
0.0.65.32
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.65.32

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 16672 first appears in π at position 118,449 of the decimal expansion (the 118,449ordinal-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.