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16,172

16,172 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.).
Arithmetic Number Deficient Number Happy Number Odious Number Pentagonal Recamán's Sequence Self Number

Properties

Parity
Even
Digit count
5
Digit sum
17
Digit product
84
Digital root
8
Palindrome
No
Bit width
14 bits
Reversed
27,161
Recamán's sequence
a(5,988) = 16,172
Square (n²)
261,533,584
Cube (n³)
4,229,521,120,448
Divisor count
12
σ(n) — sum of divisors
30,576
φ(n) — Euler's totient
7,440
Sum of prime factors
328

Primality

Prime factorization: 2 2 × 13 × 311

Nearest primes: 16,141 (−31) · 16,183 (+11)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 13 · 26 · 52 · 311 · 622 · 1244 · 4043 · 8086 (half) · 16172
Aliquot sum (sum of proper divisors): 14,404
Factor pairs (a × b = 16,172)
1 × 16172
2 × 8086
4 × 4043
13 × 1244
26 × 622
52 × 311
First multiples
16,172 · 32,344 (double) · 48,516 · 64,688 · 80,860 · 97,032 · 113,204 · 129,376 · 145,548 · 161,720

Sums & aliquot sequence

As consecutive integers: 2,018 + 2,019 + … + 2,025 1,238 + 1,239 + … + 1,250 104 + 105 + … + 207
Aliquot sequence: 16,172 14,404 12,840 26,040 66,120 149,880 300,120 637,320 1,332,600 2,800,320 6,093,744 9,857,616 16,718,064 30,397,968 54,674,526 54,765,474 54,765,486 — unresolved within range

Representations

In words
sixteen thousand one hundred seventy-two
Ordinal
16172nd
Binary
11111100101100
Octal
37454
Hexadecimal
0x3F2C
Base64
Pyw=
One's complement
49,363 (16-bit)
In other bases
ternary (3) 211011222
quaternary (4) 3330230
quinary (5) 1004142
senary (6) 202512
septenary (7) 65102
nonary (9) 24158
undecimal (11) 11172
duodecimal (12) 9438
tridecimal (13) 7490
tetradecimal (14) 5c72
pentadecimal (15) 4bd2

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ιϛροβʹ
Mayan (base 20)
𝋢·𝋠·𝋨·𝋬
Chinese
一萬六千一百七十二
Chinese (financial)
壹萬陸仟壹佰柒拾貳
In other modern scripts
Eastern Arabic ١٦١٧٢ Devanagari १६१७२ Bengali ১৬১৭২ Tamil ௧௬௧௭௨ Thai ๑๖๑๗๒ Tibetan ༡༦༡༧༢ Khmer ១៦១៧២ Lao ໑໖໑໗໒ Burmese ၁၆၁၇၂

Digit at this position in famous constants

π — Pi (π)
Digit 16,172 = 3
e — Euler's number (e)
Digit 16,172 = 4
φ — Golden ratio (φ)
Digit 16,172 = 9
√2 — Pythagoras's (√2)
Digit 16,172 = 7
ln 2 — Natural log of 2
Digit 16,172 = 6
γ — Euler-Mascheroni (γ)
Digit 16,172 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 16172, here are decompositions:

  • 31 + 16141 = 16172
  • 61 + 16111 = 16172
  • 103 + 16069 = 16172
  • 109 + 16063 = 16172
  • 139 + 16033 = 16172
  • 181 + 15991 = 16172
  • 199 + 15973 = 16172
  • 271 + 15901 = 16172

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-3F2C
U+3F2C
Other letter (Lo)

UTF-8 encoding: E3 BC AC (3 bytes).

Hex color
#003F2C
RGB(0, 63, 44)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.63.44.

Address
0.0.63.44
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.63.44

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

Position in π

The digit sequence 16172 first appears in π at position 6,797 of the decimal expansion (the 6,797ordinal-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.