Number

6,121

6,121 is a prime, odd.

6,121 (six thousand one hundred twenty-one) is an odd 4-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x17E9.

Arithmetic Number Cube-Free Deficient Number Odious Number Prime Pythagorean Prime Recamán's Sequence Squarefree

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

6,109 6,110 6,111 6,112 6,113 6,114 6,115 6,116 6,117 6,118 6,119 6,120 6,121 6,122 6,123 6,124 6,125 6,126 6,127 6,128 6,129 6,130 6,131 6,132 6,133

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 10
Digit product: 12
Digital root: 1
Palindrome: No
Bit width: 13 bits
Reversed: 1,216
Recamán's sequence: a(12,521) = 6,121
Square (n²): 37,466,641
Cube (n³): 229,333,309,561
Divisor count: 2
σ(n) — sum of divisors: 6,122
φ(n) — Euler's totient: 6,120

Primality

6,121 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 6121

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 6,121)

1 × 6121

First multiples

6,121 · 12,242 (double) · 18,363 · 24,484 · 30,605 · 36,726 · 42,847 · 48,968 · 55,089 · 61,210

Sums & aliquot sequence

As a sum of two squares: 45² + 64²

As consecutive integers: 3,060 + 3,061

Continued fraction of √n

√6,121 = [78; (4, 4, 2, 30, 1, 5, 1, 1, 4, 2, 1, 5, 1, 1, 3, 10, 6, 1, 2, 2, 2, 51, 1, 2, …)]

Representations

In words: six thousand one hundred twenty-one
Ordinal: 6121st
Binary: 1011111101001
Octal: 13751
Hexadecimal: 0x17E9
Base64: F+k=
One's complement: 59,414 (16-bit)
Scientific notation: 6.121 × 10³
As a duration: 6,121 s = 1 hour, 42 minutes, 1 second

In other bases

ternary (3) 22101201

quaternary (4) 1133221

quinary (5) 143441

senary (6) 44201

septenary (7) 23563

nonary (9) 8351

undecimal (11) 4665

duodecimal (12) 3661

tridecimal (13) 2a2b

tetradecimal (14) 2333

pentadecimal (15) 1c31

As an angle

6,121° = 17 × 360° + 1°

1° ≈ 0.017 rad

Compass bearing: N (north)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ϛρκαʹ
Mayan (base 20): 𝋯·𝋦·𝋡
Chinese: 六千一百二十一
Chinese (financial): 陸仟壹佰貳拾壹

In other modern scripts

Eastern Arabic ٦١٢١ Devanagari ६१२१ Bengali ৬১২১ Tamil ௬௧௨௧ Thai ๖๑๒๑ Tibetan ༦༡༢༡ Khmer ៦១២១ Lao ໖໑໒໑ Burmese ၆၁၂၁

Digit at this position in famous constants

π — Pi (π): Digit 6,121 = 6
e — Euler's number (e): Digit 6,121 = 1
φ — Golden ratio (φ): Digit 6,121 = 4
√2 — Pythagoras's (√2): Digit 6,121 = 2
ln 2 — Natural log of 2: Digit 6,121 = 1
γ — Euler-Mascheroni (γ): Digit 6,121 = 8

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 6,113 (gap of 8)
Next prime: 6,131 (gap of 10)

Unicode codepoint

៩

Khmer Digit Nine

U+17E9

Decimal digit (Nd)

UTF-8 encoding: E1 9F A9 (3 bytes).

Lookup U+17E9 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0017E9

RGB(0, 23, 233)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.23.233.

Address: 0.0.23.233
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.23.233

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

Musical pitch

Heard as a frequency, 6,121 Hz is closest to:

Concert pitch (A4 = 440 Hz): G8 (6271.9 Hz, -42¢)
Scientific pitch (C4 = 256 Hz): G8 (6137.1 Hz, -5¢)
Baroque pitch (A4 = 415 Hz): G♯8 (6267.3 Hz, -41¢)

Position in π

The digit sequence 6121 first appears in π at position 9,165 of the decimal expansion (the 9,165ordinal-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 6121 on Pi Search ↗