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Number

42,397

42,397 is a prime, odd.

Arithmetic Number Balanced Prime Deficient Number Odious Number Prime Pythagorean Prime Recamán's Sequence Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
25
Digit product
1,512
Digital root
7
Palindrome
No
Bit width
16 bits
Reversed
79,324
Recamán's sequence
a(150,829) = 42,397
Square (n²)
1,797,505,609
Cube (n³)
76,208,845,304,773
Divisor count
2
σ(n) — sum of divisors
42,398
φ(n) — Euler's totient
42,396

Primality

42,397 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 42397
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 42,397)
1 × 42397
First multiples
42,397 · 84,794 (double) · 127,191 · 169,588 · 211,985 · 254,382 · 296,779 · 339,176 · 381,573 · 423,970

Sums & aliquot sequence

As a sum of two squares: 69² + 194²
As consecutive integers: 21,198 + 21,199

Representations

In words
forty-two thousand three hundred ninety-seven
Ordinal
42397th
Binary
1010010110011101
Octal
122635
Hexadecimal
0xA59D
Base64
pZ0=
One's complement
23,138 (16-bit)
In other bases
ternary (3) 2011011021
quaternary (4) 22112131
quinary (5) 2324042
senary (6) 524141
septenary (7) 234415
nonary (9) 64137
undecimal (11) 29943
duodecimal (12) 20651
tridecimal (13) 163b4
tetradecimal (14) 11645
pentadecimal (15) c867

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβτϟζʹ
Mayan (base 20)
𝋥·𝋥·𝋳·𝋱
Chinese
四萬二千三百九十七
Chinese (financial)
肆萬貳仟參佰玖拾柒
In other modern scripts
Eastern Arabic ٤٢٣٩٧ Devanagari ४२३९७ Bengali ৪২৩৯৭ Tamil ௪௨௩௯௭ Thai ๔๒๓๙๗ Tibetan ༤༢༣༩༧ Khmer ៤២៣៩៧ Lao ໔໒໓໙໗ Burmese ၄၂၃၉၇

Digit at this position in famous constants

π — Pi (π)
Digit 42,397 = 3
e — Euler's number (e)
Digit 42,397 = 5
φ — Golden ratio (φ)
Digit 42,397 = 8
√2 — Pythagoras's (√2)
Digit 42,397 = 0
ln 2 — Natural log of 2
Digit 42,397 = 3
γ — Euler-Mascheroni (γ)
Digit 42,397 = 5

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 42,391 (gap of 6)
  • Next prime: 42,403 (gap of 6)

Pair status: sexy with 42391, sexy with 42403.

Unicode codepoint
Vai Syllable Bu
U+A59D
Other letter (Lo)

UTF-8 encoding: EA 96 9D (3 bytes).

Hex color
#00A59D
RGB(0, 165, 157)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.157.

Address
0.0.165.157
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.165.157

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

Position in π

The digit sequence 42397 first appears in π at position 182,051 of the decimal expansion (the 182,051ordinal-suffix:st 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.