Number
20,201
20,201 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 5
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 10,202
- Recamán's sequence
- a(5,085) = 20,201
- Square (n²)
- 408,080,401
- Cube (n³)
- 8,243,632,180,601
- Divisor count
- 2
- σ(n) — sum of divisors
- 20,202
- φ(n) — Euler's totient
- 20,200
Primality
20,201 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
20,201
·
40,402
(double)
·
60,603
·
80,804
·
101,005
·
121,206
·
141,407
·
161,608
·
181,809
·
202,010
Sums & aliquot sequence
As a sum of two squares:
100² + 101²
As consecutive integers:
10,100 + 10,101
Representations
- In words
- twenty thousand two hundred one
- Ordinal
- 20201st
- Binary
- 100111011101001
- Octal
- 47351
- Hexadecimal
- 0x4EE9
- Base64
- Tuk=
- One's complement
- 45,334 (16-bit)
In other bases
ternary (3)
1000201012
quaternary (4)
10323221
quinary (5)
1121301
senary (6)
233305
septenary (7)
112616
nonary (9)
30635
undecimal (11)
141a5
duodecimal (12)
b835
tridecimal (13)
926c
tetradecimal (14)
750d
pentadecimal (15)
5ebb
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓍢𓍢𓏺
- Greek (Milesian)
- ͵κσαʹ
- Mayan (base 20)
- 𝋢·𝋪·𝋪·𝋡
- Chinese
- 二萬零二百零一
- Chinese (financial)
- 貳萬零貳佰零壹
In other modern scripts
Eastern Arabic
٢٠٢٠١
Devanagari
२०२०१
Bengali
২০২০১
Tamil
௨௦௨௦௧
Thai
๒๐๒๐๑
Tibetan
༢༠༢༠༡
Khmer
២០២០១
Lao
໒໐໒໐໑
Burmese
၂၀၂၀၁
Digit at this position in famous constants
- π — Pi (π)
- Digit 20,201 = 7
- e — Euler's number (e)
- Digit 20,201 = 8
- φ — Golden ratio (φ)
- Digit 20,201 = 1
- √2 — Pythagoras's (√2)
- Digit 20,201 = 2
- ln 2 — Natural log of 2
- Digit 20,201 = 3
- γ — Euler-Mascheroni (γ)
- Digit 20,201 = 2
Also seen as
Unicode codepoint
仩
CJK Unified Ideograph-4Ee9
U+4EE9
Other letter (Lo)
UTF-8 encoding: E4 BB A9 (3 bytes).
Hex color
#004EE9
RGB(0, 78, 233)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.78.233.
- Address
- 0.0.78.233
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.78.233
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 20201 first appears in π at position 32,352 of the decimal expansion (the 32,352ordinal-suffix:nd 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.