Live analysis

66,001

66,001 is a composite number, odd.

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 Evil Number Flippable Harshad / Niven Semiprime Squarefree

Properties

Parity: Odd
Digit count: 5
Digit sum: 13
Digit product: 0
Digital root: 4
Palindrome: No
Bit width: 17 bits
Reversed: 10,066
Flips to (rotate 180°): 10,099
Square (n²): 4,356,132,001
Cube (n³): 287,509,068,198,001
Divisor count: 4
σ(n) — sum of divisors: 71,092
φ(n) — Euler's totient: 60,912
Sum of prime factors: 5,090

Primality

Prime factorization: 13 × 5077

Nearest primes: 65,993 (−8) · 66,029 (+28)

Divisors & multiples

All divisors (4)

1 · 13 · 5077 · 66001

Aliquot sum (sum of proper divisors): 5,091

Factor pairs (a × b = 66,001)

1 × 66001

13 × 5077

First multiples

66,001 · 132,002 (double) · 198,003 · 264,004 · 330,005 · 396,006 · 462,007 · 528,008 · 594,009 · 660,010

Sums & aliquot sequence

As a sum of two squares: 124² + 225² = 160² + 201²

As consecutive integers: 33,000 + 33,001 5,071 + 5,072 + … + 5,083 2,526 + 2,527 + … + 2,551

Aliquot sequence: 66,001 → 5,091 → 1,701 → 1,211 → 181 → 1 → 0 — terminates at zero

Representations

In words: sixty-six thousand one
Ordinal: 66001st
Binary: 10000000111010001
Octal: 200721
Hexadecimal: 0x101D1
Base64: AQHR
One's complement: 4,294,901,294 (32-bit)

In other bases

ternary (3) 10100112111

quaternary (4) 100013101

quinary (5) 4103001

senary (6) 1225321

septenary (7) 363265

nonary (9) 110474

undecimal (11) 45651

duodecimal (12) 32241

tridecimal (13) 24070

tetradecimal (14) 1a0a5

pentadecimal (15) 14851

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓏺
Greek (Milesian): ͵ξϛαʹ
Mayan (base 20): 𝋨·𝋥·𝋠·𝋡
Chinese: 六萬六千零一
Chinese (financial): 陸萬陸仟零壹

In other modern scripts

Eastern Arabic ٦٦٠٠١ Devanagari ६६००१ Bengali ৬৬০০১ Tamil ௬௬௦௦௧ Thai ๖๖๐๐๑ Tibetan ༦༦༠༠༡ Khmer ៦៦០០១ Lao ໖໖໐໐໑ Burmese ၆၆၀၀၁

Digit at this position in famous constants

π — Pi (π): Digit 66,001 = 2
e — Euler's number (e): Digit 66,001 = 3
φ — Golden ratio (φ): Digit 66,001 = 7
√2 — Pythagoras's (√2): Digit 66,001 = 0
ln 2 — Natural log of 2: Digit 66,001 = 2
γ — Euler-Mascheroni (γ): Digit 66,001 = 1

Also seen as

Unicode codepoint

𐇑

Phaistos Disc Sign Plumed Head

U+101D1

Other symbol (So)

UTF-8 encoding: F0 90 87 91 (4 bytes).

Lookup U+101D1 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0101D1

RGB(1, 1, 209)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.1.209.

Address: 0.1.1.209
Class: reserved
IPv4-mapped IPv6: ::ffff:0.1.1.209

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

Position in π

The digit sequence 66001 first appears in π at position 281,327 of the decimal expansion (the 281,327ordinal-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.

Look up 66001 on Pi Search ↗