Number
16,001
16,001 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 10,061
- Flips to (rotate 180°)
- 10,091
- Recamán's sequence
- a(45,313) = 16,001
- Square (n²)
- 256,032,001
- Cube (n³)
- 4,096,768,048,001
- Divisor count
- 2
- σ(n) — sum of divisors
- 16,002
- φ(n) — Euler's totient
- 16,000
Primality
16,001 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
16,001
·
32,002
(double)
·
48,003
·
64,004
·
80,005
·
96,006
·
112,007
·
128,008
·
144,009
·
160,010
Sums & aliquot sequence
As a sum of two squares:
25² + 124²
As consecutive integers:
8,000 + 8,001
Representations
- In words
- sixteen thousand one
- Ordinal
- 16001st
- Binary
- 11111010000001
- Octal
- 37201
- Hexadecimal
- 0x3E81
- Base64
- PoE=
- One's complement
- 49,534 (16-bit)
In other bases
ternary (3)
210221122
quaternary (4)
3322001
quinary (5)
1003001
senary (6)
202025
septenary (7)
64436
nonary (9)
23848
undecimal (11)
11027
duodecimal (12)
9315
tridecimal (13)
738b
tetradecimal (14)
5b8d
pentadecimal (15)
4b1b
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓏺
- Greek (Milesian)
- ͵ιϛαʹ
- Mayan (base 20)
- 𝋢·𝋠·𝋠·𝋡
- Chinese
- 一萬六千零一
- Chinese (financial)
- 壹萬陸仟零壹
In other modern scripts
Eastern Arabic
١٦٠٠١
Devanagari
१६००१
Bengali
১৬০০১
Tamil
௧௬௦௦௧
Thai
๑๖๐๐๑
Tibetan
༡༦༠༠༡
Khmer
១៦០០១
Lao
໑໖໐໐໑
Burmese
၁၆၀၀၁
Digit at this position in famous constants
- π — Pi (π)
- Digit 16,001 = 0
- e — Euler's number (e)
- Digit 16,001 = 3
- φ — Golden ratio (φ)
- Digit 16,001 = 2
- √2 — Pythagoras's (√2)
- Digit 16,001 = 6
- ln 2 — Natural log of 2
- Digit 16,001 = 4
- γ — Euler-Mascheroni (γ)
- Digit 16,001 = 6
Also seen as
Prime neighborhood
Unicode codepoint
㺁
CJK Unified Ideograph-3E81
U+3E81
Other letter (Lo)
UTF-8 encoding: E3 BA 81 (3 bytes).
Hex color
#003E81
RGB(0, 62, 129)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.62.129.
- Address
- 0.0.62.129
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.62.129
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 16001 first appears in π at position 197,430 of the decimal expansion (the 197,430ordinal-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.