Live analysis

7,201

7,201 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.).

7,201 (seven thousand two hundred one) is an odd 4-digit number. It is a composite number with 4 divisors, and factors as 19 × 379. Written other ways, in hexadecimal, 0x1C21.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

7,189 7,190 7,191 7,192 7,193 7,194 7,195 7,196 7,197 7,198 7,199 7,200 7,201 7,202 7,203 7,204 7,205 7,206 7,207 7,208 7,209 7,210 7,211 7,212 7,213

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 10
Digit product: 0
Digital root: 1
Palindrome: No
Bit width: 13 bits
Reversed: 1,027
Recamán's sequence: a(26,282) = 7,201
Square (n²): 51,854,401
Cube (n³): 373,403,541,601
Divisor count: 4
σ(n) — sum of divisors: 7,600
φ(n) — Euler's totient: 6,804
Sum of prime factors: 398

Primality

Prime factorization: 19 × 379

Nearest primes: 7,193 (−8) · 7,207 (+6)

Divisors & multiples

All divisors (4)

1 · 19 · 379 · 7201

Aliquot sum (sum of proper divisors): 399

Factor pairs (a × b = 7,201)

1 × 7201

19 × 379

First multiples

7,201 · 14,402 (double) · 21,603 · 28,804 · 36,005 · 43,206 · 50,407 · 57,608 · 64,809 · 72,010

Sums & aliquot sequence

As consecutive integers: 3,600 + 3,601 370 + 371 + … + 388 171 + 172 + … + 208

Aliquot sequence: 7,201 → 399 → 241 → 1 → 0 — terminates at zero

Continued fraction of √n

√7,201 = [84; (1, 6, 12, 1, 10, 2, 1, 1, 3, 1, 1, 1, 4, 1, 5, 33, 1, 3, 2, 1, 1, 1, 1, 1, …)]

Representations

In words: seven thousand two hundred one
Ordinal: 7201st
Binary: 1110000100001
Octal: 16041
Hexadecimal: 0x1C21
Base64: HCE=
One's complement: 58,334 (16-bit)
Scientific notation: 7.201 × 10³
As a duration: 7,201 s = 2 hours, 1 second

In other bases

ternary (3) 100212201

quaternary (4) 1300201

quinary (5) 212301

senary (6) 53201

septenary (7) 26665

nonary (9) 10781

undecimal (11) 5457

duodecimal (12) 4201

tridecimal (13) 337c

tetradecimal (14) 28a5

pentadecimal (15) 2201

As an angle

7,201° = 20 × 360° + 1°

1° ≈ 0.017 rad

Compass bearing: N (north)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 · 𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓏺
Greek (Milesian): ͵ζσαʹ
Mayan (base 20): 𝋲·𝋠·𝋡
Chinese: 七千二百零一
Chinese (financial): 柒仟貳佰零壹

In other modern scripts

Eastern Arabic ٧٢٠١ Devanagari ७२०१ Bengali ৭২০১ Tamil ௭௨௦௧ Thai ๗๒๐๑ Tibetan ༧༢༠༡ Khmer ៧២០១ Lao ໗໒໐໑ Burmese ၇၂၀၁

Digit at this position in famous constants

π — Pi (π): Digit 7,201 = 2
e — Euler's number (e): Digit 7,201 = 2
φ — Golden ratio (φ): Digit 7,201 = 9
√2 — Pythagoras's (√2): Digit 7,201 = 7
ln 2 — Natural log of 2: Digit 7,201 = 8
γ — Euler-Mascheroni (γ): Digit 7,201 = 3

Also seen as

Unicode codepoint

ᰡ

Lepcha Letter Sha

U+1C21

Other letter (Lo)

UTF-8 encoding: E1 B0 A1 (3 bytes).

Lookup U+1C21 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#001C21

RGB(0, 28, 33)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.28.33.

Address: 0.0.28.33
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.28.33

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

Musical pitch

Heard as a frequency, 7,201 Hz is closest to:

Concert pitch (A4 = 440 Hz): A8 (7040 Hz, +39¢)
Scientific pitch (C4 = 256 Hz): A♯8 (7298.2 Hz, -23¢)
Baroque pitch (A4 = 415 Hz): A♯8 (7034.8 Hz, +40¢)

Position in π

The digit sequence 7201 first appears in π at position 1,008 of the decimal expansion (the 1,008ordinal-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 7201 on Pi Search ↗