61,425
61,425 is a composite number, odd.
61,425 (sixty-one thousand four hundred twenty-five) is an odd 5-digit number. It is a composite number with 48 divisors, and factors as 3³ × 5² × 7 × 13. Its proper divisors sum to 77,455, more than the number itself, making it an abundant number. It is the 350th triangular number. Written other ways, in hexadecimal, 0xEFF1.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 18
- Digit product
- 240
- Digital root
- 9
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 52,416
- Recamán's sequence
- a(44,438) = 61,425
- Square (n²)
- 3,773,030,625
- Cube (n³)
- 231,758,406,140,625
- Divisor count
- 48
- σ(n) — sum of divisors
- 138,880
- φ(n) — Euler's totient
- 25,920
- Sum of prime factors
- 39
Primality
Prime factorization: 3 3 × 5 2 × 7 × 13
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√61,425 = [247; (1, 5, 3, 1, 1, 1, 1, 1, 1, 2, 1, 4, 1, 2, 1, 1, 1, 1, 1, 1, 3, 5, 1, 494)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- sixty-one thousand four hundred twenty-five
- Ordinal
- 61425th
- Binary
- 1110111111110001
- Octal
- 167761
- Hexadecimal
- 0xEFF1
- Base64
- 7/E=
- One's complement
- 4,110 (16-bit)
- Scientific notation
- 6.1425 × 10⁴
- As a duration
- 61,425 s = 17 hours, 3 minutes, 45 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ξαυκεʹ
- Mayan (base 20)
- 𝋧·𝋭·𝋫·𝋥
- Chinese
- 六萬一千四百二十五
- Chinese (financial)
- 陸萬壹仟肆佰貳拾伍
Digit at this position in famous constants
- π — Pi (π)
- Digit 61,425 = 3
- e — Euler's number (e)
- Digit 61,425 = 2
- φ — Golden ratio (φ)
- Digit 61,425 = 9
- √2 — Pythagoras's (√2)
- Digit 61,425 = 9
- ln 2 — Natural log of 2
- Digit 61,425 = 5
- γ — Euler-Mascheroni (γ)
- Digit 61,425 = 4
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.0.239.241.
- Address
- 0.0.239.241
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.239.241
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 61425 first appears in π at position 67,862 of the decimal expansion (the 67,862ordinal-suffix:nd 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
- Triangular numbers — 1, 3, 6, 10, 15 … the counting numbers stacked into triangles, and Gauss's famous shortcut for summing them.
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.