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Number

23,197

23,197 is a prime, odd.

23,197 (twenty-three thousand one hundred ninety-seven) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x5A9D.

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

Interestingness

Properties

Parity
Odd
Digit count
5
Digit sum
22
Digit product
378
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
79,132
Recamán's sequence
a(166,801) = 23,197
Square (n²)
538,100,809
Cube (n³)
12,482,324,466,373
Divisor count
2
σ(n) — sum of divisors
23,198
φ(n) — Euler's totient
23,196

Primality

23,197 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 23197
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 23,197)
1 × 23197
First multiples
23,197 · 46,394 (double) · 69,591 · 92,788 · 115,985 · 139,182 · 162,379 · 185,576 · 208,773 · 231,970

Sums & aliquot sequence

As a sum of two squares: 101² + 114²
As consecutive integers: 11,598 + 11,599

Continued fraction of √n

√23,197 = [152; (3, 3, 1, 2, 12, 1, 7, 1, 1, 6, 2, 1, 1, 5, 2, 1, 1, 1, 3, 1, 3, 1, 2, 3, …)]

Representations

In words
twenty-three thousand one hundred ninety-seven
Ordinal
23197th
Binary
101101010011101
Octal
55235
Hexadecimal
0x5A9D
Base64
Wp0=
One's complement
42,338 (16-bit)
Scientific notation
2.3197 × 10⁴
As a duration
23,197 s = 6 hours, 26 minutes, 37 seconds
In other bases
ternary (3) 1011211011
quaternary (4) 11222131
quinary (5) 1220242
senary (6) 255221
septenary (7) 124426
nonary (9) 34734
undecimal (11) 16479
duodecimal (12) 11511
tridecimal (13) a735
tetradecimal (14) 864d
pentadecimal (15) 6d17
Palindromic in base 12

As an angle

23,197° = 64 × 360° + 157°
157° ≈ 2.74 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵κγρϟζʹ
Mayan (base 20)
𝋢·𝋱·𝋳·𝋱
Chinese
二萬三千一百九十七
Chinese (financial)
貳萬參仟壹佰玖拾柒
In other modern scripts
Eastern Arabic ٢٣١٩٧ Devanagari २३१९७ Bengali ২৩১৯৭ Tamil ௨௩௧௯௭ Thai ๒๓๑๙๗ Tibetan ༢༣༡༩༧ Khmer ២៣១៩៧ Lao ໒໓໑໙໗ Burmese ၂၃၁၉၇

Digit at this position in famous constants

π — Pi (π)
Digit 23,197 = 4
e — Euler's number (e)
Digit 23,197 = 5
φ — Golden ratio (φ)
Digit 23,197 = 8
√2 — Pythagoras's (√2)
Digit 23,197 = 2
ln 2 — Natural log of 2
Digit 23,197 = 7
γ — Euler-Mascheroni (γ)
Digit 23,197 = 6

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 23,189 (gap of 8)
  • Next prime: 23,201 (gap of 4)

Pair status: cousin with 23201.

Unicode codepoint
CJK Unified Ideograph-5A9D
U+5A9D
Other letter (Lo)

UTF-8 encoding: E5 AA 9D (3 bytes).

Hex color
#005A9D
RGB(0, 90, 157)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.90.157.

Address
0.0.90.157
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.90.157

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

Position in π

The digit sequence 23197 first appears in π at position 50,106 of the decimal expansion (the 50,106ordinal-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.

Related reading

  • Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.