139,400
139,400 is a composite number, even.
139,400 (one hundred thirty-nine thousand four hundred) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2³ × 5² × 17 × 41. Its proper divisors sum to 212,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22088.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 4,931
- Recamán's sequence
- a(490,027) = 139,400
- Square (n²)
- 19,432,360,000
- Cube (n³)
- 2,708,870,984,000,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 351,540
- φ(n) — Euler's totient
- 51,200
- Sum of prime factors
- 74
Primality
Prime factorization: 2 3 × 5 2 × 17 × 41
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,400 = [373; (2, 1, 3, 14, 1, 28, 1, 14, 3, 1, 2, 746)]
Period length 12 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand four hundred
- Ordinal
- 139400th
- Binary
- 100010000010001000
- Octal
- 420210
- Hexadecimal
- 0x22088
- Base64
- AiCI
- One's complement
- 4,294,827,895 (32-bit)
- Scientific notation
- 1.394 × 10⁵
- As a duration
- 139,400 s = 1 day, 14 hours, 43 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρλθυʹ
- Mayan (base 20)
- 𝋱·𝋨·𝋪·𝋠
- Chinese
- 一十三萬九千四百
- Chinese (financial)
- 壹拾參萬玖仟肆佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139400, here are decompositions:
- 3 + 139397 = 139400
- 7 + 139393 = 139400
- 13 + 139387 = 139400
- 31 + 139369 = 139400
- 61 + 139339 = 139400
- 67 + 139333 = 139400
- 97 + 139303 = 139400
- 103 + 139297 = 139400
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 82 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.32.136.
- Address
- 0.2.32.136
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.32.136
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 139,400 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 139400 first appears in π at position 224,308 of the decimal expansion (the 224,308ordinal-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.