137,428
137,428 is a composite number, even.
137,428 (one hundred thirty-seven thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 17 × 43 × 47. Written other ways, in hexadecimal, 0x218D4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 1,344
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 824,731
- Square (n²)
- 18,886,455,184
- Cube (n³)
- 2,595,527,763,026,752
- Divisor count
- 24
- σ(n) — sum of divisors
- 266,112
- φ(n) — Euler's totient
- 61,824
- Sum of prime factors
- 111
Primality
Prime factorization: 2 2 × 17 × 43 × 47
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√137,428 = [370; (1, 2, 2, 13, 1, 1, 3, 1, 1, 1, 1, 1, 16, 1, 1, 1, 1, 1, 3, 1, 1, 13, 2, 2, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-seven thousand four hundred twenty-eight
- Ordinal
- 137428th
- Binary
- 100001100011010100
- Octal
- 414324
- Hexadecimal
- 0x218D4
- Base64
- AhjU
- One's complement
- 4,294,829,867 (32-bit)
- Scientific notation
- 1.37428 × 10⁵
- As a duration
- 137,428 s = 1 day, 14 hours, 10 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλζυκηʹ
- Mayan (base 20)
- 𝋱·𝋣·𝋫·𝋨
- Chinese
- 一十三萬七千四百二十八
- Chinese (financial)
- 壹拾參萬柒仟肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 137428, here are decompositions:
- 29 + 137399 = 137428
- 41 + 137387 = 137428
- 59 + 137369 = 137428
- 89 + 137339 = 137428
- 107 + 137321 = 137428
- 149 + 137279 = 137428
- 227 + 137201 = 137428
- 251 + 137177 = 137428
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 A3 94 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.24.212.
- Address
- 0.2.24.212
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.24.212
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 137,428 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 137428 first appears in π at position 759,069 of the decimal expansion (the 759,069ordinal-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.