2,525
2,525 is a composite number, odd.
2,525 (two thousand five hundred twenty-five) is an odd 4-digit number. It is a composite number with 6 divisors, and factors as 5² × 101. Written other ways, in Roman numerals it is MMDXXV and in binary, 100111011101.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 14
- Digit product
- 100
- Digital root
- 5
- Palindrome
- No
- Bit width
- 12 bits
- Reversed
- 5,252
- Recamán's sequence
- a(861) = 2,525
- Square (n²)
- 6,375,625
- Cube (n³)
- 16,098,453,125
- Divisor count
- 6
- σ(n) — sum of divisors
- 3,162
- φ(n) — Euler's totient
- 2,000
- Sum of prime factors
- 111
Primality
Prime factorization: 5 2 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√2,525 = [50; (4, 100)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- two thousand five hundred twenty-five
- Ordinal
- 2525th
- Roman numeral
- MMDXXV
- Binary
- 100111011101
- Octal
- 4735
- Hexadecimal
- 0x9DD
- Base64
- Cd0=
- One's complement
- 63,010 (16-bit)
- Scientific notation
- 2.525 × 10³
- As a duration
- 2,525 s = 42 minutes, 5 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵βφκεʹ
- Mayan (base 20)
- 𝋦·𝋦·𝋥
- Chinese
- 二千五百二十五
- Chinese (financial)
- 貳仟伍佰貳拾伍
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,525 = 0
- e — Euler's number (e)
- Digit 2,525 = 9
- φ — Golden ratio (φ)
- Digit 2,525 = 5
- √2 — Pythagoras's (√2)
- Digit 2,525 = 6
- ln 2 — Natural log of 2
- Digit 2,525 = 8
- γ — Euler-Mascheroni (γ)
- Digit 2,525 = 5
Also seen as
UTF-8 encoding: E0 A7 9D (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.221.
- Address
- 0.0.9.221
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.9.221
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 2,525 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D♯7 (2489 Hz, +25¢)
- Scientific pitch (C4 = 256 Hz): E7 (2580.3 Hz, -38¢)
- Baroque pitch (A4 = 415 Hz): E7 (2487.2 Hz, +26¢)
The digit sequence 2525 first appears in π at position 7,862 of the decimal expansion (the 7,862ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.