137,900
137,900 is a composite number, even.
137,900 (one hundred thirty-seven thousand nine hundred) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 5² × 7 × 197. Its proper divisors sum to 205,828, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21AAC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 9,731
- Recamán's sequence
- a(493,027) = 137,900
- Square (n²)
- 19,016,410,000
- Cube (n³)
- 2,622,362,939,000,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 343,728
- φ(n) — Euler's totient
- 47,040
- Sum of prime factors
- 218
Primality
Prime factorization: 2 2 × 5 2 × 7 × 197
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√137,900 = [371; (2, 1, 6, 2, 9, 3, 3, 1, 11, 1, 4, 1, 1, 5, 1, 5, 1, 28, 1, 5, 1, 5, 1, 1, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-seven thousand nine hundred
- Ordinal
- 137900th
- Binary
- 100001101010101100
- Octal
- 415254
- Hexadecimal
- 0x21AAC
- Base64
- Ahqs
- One's complement
- 4,294,829,395 (32-bit)
- Scientific notation
- 1.379 × 10⁵
- As a duration
- 137,900 s = 1 day, 14 hours, 18 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρλζϡʹ
- Mayan (base 20)
- 𝋱·𝋤·𝋯·𝋠
- Chinese
- 一十三萬七千九百
- Chinese (financial)
- 壹拾參萬柒仟玖佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 137900, here are decompositions:
- 31 + 137869 = 137900
- 73 + 137827 = 137900
- 97 + 137803 = 137900
- 109 + 137791 = 137900
- 157 + 137743 = 137900
- 163 + 137737 = 137900
- 193 + 137707 = 137900
- 241 + 137659 = 137900
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 AA AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.26.172.
- Address
- 0.2.26.172
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.26.172
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 137,900 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.