Live analysis

2,601

2,601 is a composite number, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

2,601 (two thousand six hundred one) is an odd 4-digit number. It is a composite number with 9 divisors, and factors as 3² × 17². It is a perfect square (51²). Written other ways, in Roman numerals it is MMDCI and in binary, 101000101001.

Cube-Free Deficient Number Harshad / Niven Odious Number Pentagonal Pyramidal Perfect Square Pernicious Number Powerful Number Recamán's Sequence Refactorable Number

Interestingness

★ ★ ★ ★ ☆

7 notable facts · grade B

2,589 2,590 2,591 2,592 2,593 2,594 2,595 2,596 2,597 2,598 2,599 2,600 2,601 2,602 2,603 2,604 2,605 2,606 2,607 2,608 2,609 2,610 2,611 2,612 2,613

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 9
Digit product: 0
Digital root: 9
Palindrome: No
Bit width: 12 bits
Reversed: 1,062
Recamán's sequence: a(7,430) = 2,601
Square (n²): 6,765,201
Cube (n³): 17,596,287,801
Square root (√n): 51
Divisor count: 9
σ(n) — sum of divisors: 3,991
φ(n) — Euler's totient: 1,632
Sum of prime factors: 40

Primality

Prime factorization: 3 ² × 17 ²

Nearest primes: 2,593 (−8) · 2,609 (+8)

Divisors & multiples

All divisors (9)

1 · 3 · 9 · 17 · 51 · 153 · 289 · 867 · 2601

Aliquot sum (sum of proper divisors): 1,390

Factor pairs (a × b = 2,601)

1 × 2601

3 × 867

9 × 289

17 × 153

51 × 51

First multiples

2,601 · 5,202 (double) · 7,803 · 10,404 · 13,005 · 15,606 · 18,207 · 20,808 · 23,409 · 26,010

Sums & aliquot sequence

As a sum of two squares: 0² + 51² = 24² + 45²

As consecutive integers: 1,300 + 1,301 866 + 867 + 868 431 + 432 + 433 + 434 + 435 + 436 285 + 286 + … + 293

Aliquot sequence: 2,601 → 1,390 → 1,130 → 922 → 464 → 466 → 236 → 184 → 176 → 196 → 203 → 37 → 1 → 0 — terminates at zero

Representations

In words: two thousand six hundred one
Ordinal: 2601st
Roman numeral: MMDCI
Binary: 101000101001
Octal: 5051
Hexadecimal: 0xA29
Base64: Cik=
One's complement: 62,934 (16-bit)
Scientific notation: 2.601 × 10³
As a duration: 2,601 s = 43 minutes, 21 seconds

In other bases

ternary (3) 10120100

quaternary (4) 220221

quinary (5) 40401

senary (6) 20013

septenary (7) 10404

nonary (9) 3510

undecimal (11) 1a55

duodecimal (12) 1609

tridecimal (13) 1251

tetradecimal (14) d3b

pentadecimal (15) b86

As an angle

2,601° = 7 × 360° + 81°

81° ≈ 1.414 rad

Compass bearing: E (east)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓏺
Greek (Milesian): ͵βχαʹ
Mayan (base 20): 𝋦·𝋪·𝋡
Chinese: 二千六百零一
Chinese (financial): 貳仟陸佰零壹

In other modern scripts

Eastern Arabic ٢٦٠١ Devanagari २६०१ Bengali ২৬০১ Tamil ௨௬௦௧ Thai ๒๖๐๑ Tibetan ༢༦༠༡ Khmer ២៦០១ Lao ໒໖໐໑ Burmese ၂၆၀၁

Digit at this position in famous constants

π — Pi (π): Digit 2,601 = 8
e — Euler's number (e): Digit 2,601 = 6
φ — Golden ratio (φ): Digit 2,601 = 3
√2 — Pythagoras's (√2): Digit 2,601 = 6
ln 2 — Natural log of 2: Digit 2,601 = 7
γ — Euler-Mascheroni (γ): Digit 2,601 = 6

Also seen as

Hex color

#000A29

RGB(0, 10, 41)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.10.41.

Address: 0.0.10.41
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.10.41

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Musical pitch

Heard as a frequency, 2,601 Hz is closest to:

Concert pitch (A4 = 440 Hz): E7 (2637 Hz, -24¢)
Scientific pitch (C4 = 256 Hz): E7 (2580.3 Hz, +14¢)
Baroque pitch (A4 = 415 Hz): F7 (2635.1 Hz, -23¢)

Position in π

The digit sequence 2601 first appears in π at position 2,064 of the decimal expansion (the 2,064ordinal-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.

Look up 2601 on Pi Search ↗