40,470
40,470 is a composite number, even.
40,470 (forty thousand four hundred seventy) is an even 5-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 19 × 71. Its proper divisors sum to 63,210, more than the number itself, making it an abundant number. It is the 284th triangular number. Written other ways, in hexadecimal, 0x9E16.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 7,404
- Recamán's sequence
- a(153,239) = 40,470
- Square (n²)
- 1,637,820,900
- Cube (n³)
- 66,282,611,823,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 103,680
- φ(n) — Euler's totient
- 10,080
- Sum of prime factors
- 100
Primality
Prime factorization: 2 × 3 × 5 × 19 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√40,470 = [201; (5, 1, 4, 1, 5, 402)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- forty thousand four hundred seventy
- Ordinal
- 40470th
- Binary
- 1001111000010110
- Octal
- 117026
- Hexadecimal
- 0x9E16
- Base64
- nhY=
- One's complement
- 25,065 (16-bit)
- Scientific notation
- 4.047 × 10⁴
- As a duration
- 40,470 s = 11 hours, 14 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵μυοʹ
- Mayan (base 20)
- 𝋥·𝋡·𝋣·𝋪
- Chinese
- 四萬零四百七十
- Chinese (financial)
- 肆萬零肆佰柒拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 40,470 = 0
- e — Euler's number (e)
- Digit 40,470 = 7
- φ — Golden ratio (φ)
- Digit 40,470 = 7
- √2 — Pythagoras's (√2)
- Digit 40,470 = 4
- ln 2 — Natural log of 2
- Digit 40,470 = 0
- γ — Euler-Mascheroni (γ)
- Digit 40,470 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 40470, here are decompositions:
- 11 + 40459 = 40470
- 37 + 40433 = 40470
- 41 + 40429 = 40470
- 43 + 40427 = 40470
- 47 + 40423 = 40470
- 83 + 40387 = 40470
- 109 + 40361 = 40470
- 113 + 40357 = 40470
Showing the first eight; more decompositions exist.
UTF-8 encoding: E9 B8 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.158.22.
- Address
- 0.0.158.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.158.22
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 40470 first appears in π at position 28,986 of the decimal expansion (the 28,986ordinal-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
- Triangular numbers — 1, 3, 6, 10, 15 … the counting numbers stacked into triangles, and Gauss's famous shortcut for summing them.
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.