40,012
40,012 is a composite number, even.
40,012 (forty thousand twelve) is an even 5-digit number. It is a composite number with 12 divisors, and factors as 2² × 7 × 1,429. Its proper divisors sum to 40,068, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x9C4C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 7
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 21,004
- Square (n²)
- 1,600,960,144
- Cube (n³)
- 64,057,617,281,728
- Divisor count
- 12
- σ(n) — sum of divisors
- 80,080
- φ(n) — Euler's totient
- 17,136
- Sum of prime factors
- 1,440
Primality
Prime factorization: 2 2 × 7 × 1429
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√40,012 = [200; (33, 2, 1, 43, 1, 3, 1, 1, 3, 6, 1, 2, 1, 4, 5, 18, 1, 6, 14, 6, 1, 18, 5, 4, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- forty thousand twelve
- Ordinal
- 40012th
- Binary
- 1001110001001100
- Octal
- 116114
- Hexadecimal
- 0x9C4C
- Base64
- nEw=
- One's complement
- 25,523 (16-bit)
- Scientific notation
- 4.0012 × 10⁴
- As a duration
- 40,012 s = 11 hours, 6 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓎆𓏺𓏺
- Greek (Milesian)
- ͵μιβʹ
- Mayan (base 20)
- 𝋥·𝋠·𝋠·𝋬
- Chinese
- 四萬零一十二
- Chinese (financial)
- 肆萬零壹拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 40,012 = 0
- e — Euler's number (e)
- Digit 40,012 = 8
- φ — Golden ratio (φ)
- Digit 40,012 = 5
- √2 — Pythagoras's (√2)
- Digit 40,012 = 3
- ln 2 — Natural log of 2
- Digit 40,012 = 6
- γ — Euler-Mascheroni (γ)
- Digit 40,012 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 40012, here are decompositions:
- 3 + 40009 = 40012
- 23 + 39989 = 40012
- 29 + 39983 = 40012
- 41 + 39971 = 40012
- 59 + 39953 = 40012
- 83 + 39929 = 40012
- 149 + 39863 = 40012
- 173 + 39839 = 40012
Showing the first eight; more decompositions exist.
UTF-8 encoding: E9 B1 8C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.156.76.
- Address
- 0.0.156.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.156.76
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 40012 first appears in π at position 34,201 of the decimal expansion (the 34,201ordinal-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.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.