137,890
137,890 is a composite number, even.
137,890 (one hundred thirty-seven thousand eight hundred ninety) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 13,789. Written other ways, in hexadecimal, 0x21AA2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 28
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 98,731
- Recamán's sequence
- a(493,047) = 137,890
- Square (n²)
- 19,013,652,100
- Cube (n³)
- 2,621,792,488,069,000
- Divisor count
- 8
- σ(n) — sum of divisors
- 248,220
- φ(n) — Euler's totient
- 55,152
- Sum of prime factors
- 13,796
Primality
Prime factorization: 2 × 5 × 13789
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√137,890 = [371; (2, 1, 52, 2, 1, 1, 1, 1, 1, 14, 1, 1, 6, 5, 1, 2, 1, 6, 82, 2, 1, 2, 3, 5, …)]
Representations
- In words
- one hundred thirty-seven thousand eight hundred ninety
- Ordinal
- 137890th
- Binary
- 100001101010100010
- Octal
- 415242
- Hexadecimal
- 0x21AA2
- Base64
- Ahqi
- One's complement
- 4,294,829,405 (32-bit)
- Scientific notation
- 1.3789 × 10⁵
- As a duration
- 137,890 s = 1 day, 14 hours, 18 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλζωϟʹ
- Mayan (base 20)
- 𝋱·𝋤·𝋮·𝋪
- Chinese
- 一十三萬七千八百九十
- Chinese (financial)
- 壹拾參萬柒仟捌佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 137890, here are decompositions:
- 17 + 137873 = 137890
- 23 + 137867 = 137890
- 41 + 137849 = 137890
- 59 + 137831 = 137890
- 113 + 137777 = 137890
- 167 + 137723 = 137890
- 191 + 137699 = 137890
- 251 + 137639 = 137890
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 AA A2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.26.162.
- Address
- 0.2.26.162
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.26.162
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 137,890 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 137890 first appears in π at position 59,865 of the decimal expansion (the 59,865ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.