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Number

25,243

25,243 is a prime, odd.

Arithmetic Number Cousin Prime Deficient Number Evil Number Prime Recamán's Sequence Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
16
Digit product
240
Digital root
7
Palindrome
No
Bit width
15 bits
Reversed
34,252
Recamán's sequence
a(7,589) = 25,243
Square (n²)
637,209,049
Cube (n³)
16,085,068,023,907
Divisor count
2
σ(n) — sum of divisors
25,244
φ(n) — Euler's totient
25,242

Primality

25,243 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 25243
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 25,243)
1 × 25243
First multiples
25,243 · 50,486 (double) · 75,729 · 100,972 · 126,215 · 151,458 · 176,701 · 201,944 · 227,187 · 252,430

Sums & aliquot sequence

As consecutive integers: 12,621 + 12,622

Representations

In words
twenty-five thousand two hundred forty-three
Ordinal
25243rd
Binary
110001010011011
Octal
61233
Hexadecimal
0x629B
Base64
Yps=
One's complement
40,292 (16-bit)
In other bases
ternary (3) 1021121221
quaternary (4) 12022123
quinary (5) 1301433
senary (6) 312511
septenary (7) 133411
nonary (9) 37557
undecimal (11) 17a69
duodecimal (12) 12737
tridecimal (13) b64a
tetradecimal (14) 92b1
pentadecimal (15) 772d

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵κεσμγʹ
Mayan (base 20)
𝋣·𝋣·𝋢·𝋣
Chinese
二萬五千二百四十三
Chinese (financial)
貳萬伍仟貳佰肆拾參
In other modern scripts
Eastern Arabic ٢٥٢٤٣ Devanagari २५२४३ Bengali ২৫২৪৩ Tamil ௨௫௨௪௩ Thai ๒๕๒๔๓ Tibetan ༢༥༢༤༣ Khmer ២៥២៤៣ Lao ໒໕໒໔໓ Burmese ၂၅၂၄၃

Digit at this position in famous constants

π — Pi (π)
Digit 25,243 = 0
e — Euler's number (e)
Digit 25,243 = 2
φ — Golden ratio (φ)
Digit 25,243 = 0
√2 — Pythagoras's (√2)
Digit 25,243 = 5
ln 2 — Natural log of 2
Digit 25,243 = 1
γ — Euler-Mascheroni (γ)
Digit 25,243 = 6

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 25,237 (gap of 6)
  • Next prime: 25,247 (gap of 4)

Pair status: cousin with 25247, sexy with 25237.

Unicode codepoint
CJK Unified Ideograph-629B
U+629B
Other letter (Lo)

UTF-8 encoding: E6 8A 9B (3 bytes).

Hex color
#00629B
RGB(0, 98, 155)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.98.155.

Address
0.0.98.155
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.98.155

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

Position in π

The digit sequence 25243 first appears in π at position 54,910 of the decimal expansion (the 54,910ordinal-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.