139,100
139,100 is a composite number, even.
139,100 (one hundred thirty-nine thousand one hundred) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 5² × 13 × 107. Its proper divisors sum to 189,004, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21F5C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 1,931
- Recamán's sequence
- a(490,627) = 139,100
- Square (n²)
- 19,348,810,000
- Cube (n³)
- 2,691,419,471,000,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 328,104
- φ(n) — Euler's totient
- 50,880
- Sum of prime factors
- 134
Primality
Prime factorization: 2 2 × 5 2 × 13 × 107
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,100 = [372; (1, 24, 1, 2, 1, 1, 1, 1, 4, 1, 3, 11, 1, 28, 1, 11, 3, 1, 4, 1, 1, 1, 1, 2, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand one hundred
- Ordinal
- 139100th
- Binary
- 100001111101011100
- Octal
- 417534
- Hexadecimal
- 0x21F5C
- Base64
- Ah9c
- One's complement
- 4,294,828,195 (32-bit)
- Scientific notation
- 1.391 × 10⁵
- As a duration
- 139,100 s = 1 day, 14 hours, 38 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢
- Greek (Milesian)
- ͵ρλθρʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋯·𝋠
- Chinese
- 一十三萬九千一百
- Chinese (financial)
- 壹拾參萬玖仟壹佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139100, here are decompositions:
- 67 + 139033 = 139100
- 79 + 139021 = 139100
- 163 + 138937 = 139100
- 211 + 138889 = 139100
- 271 + 138829 = 139100
- 307 + 138793 = 139100
- 337 + 138763 = 139100
- 373 + 138727 = 139100
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BD 9C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.92.
- Address
- 0.2.31.92
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.92
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 139,100 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 139100 first appears in π at position 147,289 of the decimal expansion (the 147,289ordinal-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.