38,390
38,390 is a composite number, even.
38,390 (thirty-eight thousand three hundred ninety) is an even 5-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 11 × 349. Written other ways, in hexadecimal, 0x95F6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 9,383
- Recamán's sequence
- a(306,676) = 38,390
- Square (n²)
- 1,473,792,100
- Cube (n³)
- 56,578,878,719,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 75,600
- φ(n) — Euler's totient
- 13,920
- Sum of prime factors
- 367
Primality
Prime factorization: 2 × 5 × 11 × 349
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√38,390 = [195; (1, 14, 13, 2, 4, 7, 1, 3, 2, 2, 1, 27, 3, 1, 1, 3, 1, 2, 1, 3, 1, 1, 3, 27, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- thirty-eight thousand three hundred ninety
- Ordinal
- 38390th
- Binary
- 1001010111110110
- Octal
- 112766
- Hexadecimal
- 0x95F6
- Base64
- lfY=
- One's complement
- 27,145 (16-bit)
- Scientific notation
- 3.839 × 10⁴
- As a duration
- 38,390 s = 10 hours, 39 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵λητϟʹ
- Mayan (base 20)
- 𝋤·𝋯·𝋳·𝋪
- Chinese
- 三萬八千三百九十
- Chinese (financial)
- 參萬捌仟參佰玖拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 38,390 = 9
- e — Euler's number (e)
- Digit 38,390 = 9
- φ — Golden ratio (φ)
- Digit 38,390 = 5
- √2 — Pythagoras's (√2)
- Digit 38,390 = 2
- ln 2 — Natural log of 2
- Digit 38,390 = 1
- γ — Euler-Mascheroni (γ)
- Digit 38,390 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 38390, here are decompositions:
- 13 + 38377 = 38390
- 19 + 38371 = 38390
- 61 + 38329 = 38390
- 73 + 38317 = 38390
- 103 + 38287 = 38390
- 109 + 38281 = 38390
- 151 + 38239 = 38390
- 193 + 38197 = 38390
Showing the first eight; more decompositions exist.
UTF-8 encoding: E9 97 B6 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.149.246.
- Address
- 0.0.149.246
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.149.246
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 38390 first appears in π at position 108,837 of the decimal expansion (the 108,837ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.