1445

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1445 < 1444 | 1446 >
All Numbers
1400	1401	1402	1403	1404	1405	1406	1407	1408	1409
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1490	1491	1492	1493	1494	1495	1496	1497	1498	1499

1445 is the number following 1444 and preceding 1446.

Properties

• Its factors are 1, 5, 17, 85, 289 and 1445, making it a composite number. It is also a cubefree number.
• 1445 is an odd number .
• 1445 is an unhappy number.
  

• 1445 is deficient.
  
• Its prime factorization is 5¹ × 17².
  
• It is the index of the compositorial k! ÷/ k# + 1, that is prime.

Approximations

Notation	Lower bound	Upper bound
Up-arrow notation	38 ↑ 2
Scientific notation	1.445 x 103	1.446 x 103
Slow-growing hierarchy	\(g_{\omega^{\omega}}(4)\)	\(g_{\omega^{\omega}}(5)\)
Copy notation	14[2]	15[2]
Chained arrow notation	38 → 2
Bowers' Exploding Array Function/Bird's array notation	{38,2}
Fast-growing hierarchy	f2(7)	f2(8)
Hardy hierarchy	Hω(722)	Hω(723)
Middle-growing hierarchy	m(ω,10)	m(ω,11)
Hyper-E notation	E3.1599
Hyper-E notation (non-10 base)	\(E[38]2\)
Hyperfactorial array notation	6!	7!
X-Sequence Hyper-Exponential Notation	38{1}2
Steinhaus-Moser Notation	4[3]	5[3]
PlantStar's Debut Notation	[1]	[2]
H* function	H(0)	H(0.1)
Bashicu matrix system with respect to version 4	(0)[38]	(0)[39]
m(n) map	m(1)(4)	m(1)(5)
s(n) map	\(s(1)(\lambda x . x+1)(721)\)	\(s(1)(\lambda x . x+1)(722)\)