number.wiki
Number

76,421

76,421 is a prime, odd.

Arithmetic Number Chen Prime Deficient Number Descending Digits Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Sophie Germain Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
20
Digit product
336
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
12,467
Recamán's sequence
a(275,294) = 76,421
Square (n²)
5,840,169,241
Cube (n³)
446,311,573,566,461
Divisor count
2
σ(n) — sum of divisors
76,422
φ(n) — Euler's totient
76,420

Primality

76,421 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 76421
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 76,421)
1 × 76421
First multiples
76,421 · 152,842 (double) · 229,263 · 305,684 · 382,105 · 458,526 · 534,947 · 611,368 · 687,789 · 764,210

Sums & aliquot sequence

As a sum of two squares: 175² + 214²
As consecutive integers: 38,210 + 38,211

Representations

In words
seventy-six thousand four hundred twenty-one
Ordinal
76421st
Binary
10010101010000101
Octal
225205
Hexadecimal
0x12A85
Base64
ASqF
One's complement
4,294,890,874 (32-bit)
In other bases
ternary (3) 10212211102
quaternary (4) 102222011
quinary (5) 4421141
senary (6) 1345445
septenary (7) 435542
nonary (9) 125742
undecimal (11) 52464
duodecimal (12) 38285
tridecimal (13) 28a27
tetradecimal (14) 1dbc9
pentadecimal (15) 1799b

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian)
͵οϛυκαʹ
Mayan (base 20)
𝋩·𝋫·𝋡·𝋡
Chinese
七萬六千四百二十一
Chinese (financial)
柒萬陸仟肆佰貳拾壹
In other modern scripts
Eastern Arabic ٧٦٤٢١ Devanagari ७६४२१ Bengali ৭৬৪২১ Tamil ௭௬௪௨௧ Thai ๗๖๔๒๑ Tibetan ༧༦༤༢༡ Khmer ៧៦៤២១ Lao ໗໖໔໒໑ Burmese ၇၆၄၂၁

Digit at this position in famous constants

π — Pi (π)
Digit 76,421 = 6
e — Euler's number (e)
Digit 76,421 = 2
φ — Golden ratio (φ)
Digit 76,421 = 3
√2 — Pythagoras's (√2)
Digit 76,421 = 0
ln 2 — Natural log of 2
Digit 76,421 = 2
γ — Euler-Mascheroni (γ)
Digit 76,421 = 2

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 76,403 (gap of 18)
  • Next prime: 76,423 (gap of 2)

Pair status: twin with 76423.

Hex color
#012A85
RGB(1, 42, 133)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.42.133.

Address
0.1.42.133
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.42.133

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

Position in π

The digit sequence 76421 first appears in π at position 12,693 of the decimal expansion (the 12,693ordinal-suffix:rd 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.