137,972
137,972 is a composite number, even.
137,972 (one hundred thirty-seven thousand nine hundred seventy-two) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 17 × 2,029. Written other ways, in hexadecimal, 0x21AF4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 2,646
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 279,731
- Recamán's sequence
- a(492,883) = 137,972
- Square (n²)
- 19,036,272,784
- Cube (n³)
- 2,626,472,628,554,048
- Divisor count
- 12
- σ(n) — sum of divisors
- 255,780
- φ(n) — Euler's totient
- 64,896
- Sum of prime factors
- 2,050
Primality
Prime factorization: 2 2 × 17 × 2029
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√137,972 = [371; (2, 4, 8, 1, 2, 1, 2, 7, 1, 56, 3, 1, 3, 2, 1, 1, 45, 1, 5, 3, 1, 3, 1, 1, …)]
Representations
- In words
- one hundred thirty-seven thousand nine hundred seventy-two
- Ordinal
- 137972nd
- Binary
- 100001101011110100
- Octal
- 415364
- Hexadecimal
- 0x21AF4
- Base64
- Ahr0
- One's complement
- 4,294,829,323 (32-bit)
- Scientific notation
- 1.37972 × 10⁵
- As a duration
- 137,972 s = 1 day, 14 hours, 19 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλζϡοβʹ
- Mayan (base 20)
- 𝋱·𝋤·𝋲·𝋬
- Chinese
- 一十三萬七千九百七十二
- Chinese (financial)
- 壹拾參萬柒仟玖佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 137972, here are decompositions:
- 31 + 137941 = 137972
- 61 + 137911 = 137972
- 103 + 137869 = 137972
- 181 + 137791 = 137972
- 229 + 137743 = 137972
- 313 + 137659 = 137972
- 349 + 137623 = 137972
- 379 + 137593 = 137972
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 AB B4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.26.244.
- Address
- 0.2.26.244
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.26.244
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 137,972 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 137972 first appears in π at position 765,893 of the decimal expansion (the 765,893ordinal-suffix:rd 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.