455

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455 < 454 | 456 >
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400	401	402	403	404	405	406	407	408	409
410	411	412	413	414	415	416	417	418	419
420	421	422	423	424	425	426	427	428	429
430	431	432	433	434	435	436	437	438	439
440	441	442	443	444	445	446	447	448	449
450	451	452	453	454	455	456	457	458	459
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470	471	472	473	474	475	476	477	478	479
480	481	482	483	484	485	486	487	488	489
490	491	492	493	494	495	496	497	498	499

455 is the number following 454 and preceding 456.

Properties

• Its factors are 1, 5, 7, 13, 35, 65, 91 and 455, making it a composite number. It is also a squarefree number.
• 455 is an odd number .
• 455 is an unhappy number.
  

• 455 is a tetrahedral number.
  
• 455 is deficient.
  
• Its prime factorization is 5¹ × 7¹ × 13¹.
  

Approximations

Notation	Lower bound	Upper bound
Up-arrow notation	21 ↑ 2
Scientific notation	4.55 x 102	4.551 x 102
Slow-growing hierarchy	\(g_{\omega^{\omega}}(4)\)	\(g_{\omega^{\omega}}(5)\)
Copy notation	4[3]	5[3]
Chained arrow notation	21 → 2
Bowers' Exploding Array Function/Bird's array notation	{21,2}
Fast-growing hierarchy	f2(6)	f2(7)
Hardy hierarchy	Hω(227)	Hω(228)
Middle-growing hierarchy	m(ω,8)	m(ω,9)
Hyper-E notation	E2.658
Hyper-E notation (non-10 base)	\(E[21]2\)
Hyperfactorial array notation	5!	6!
X-Sequence Hyper-Exponential Notation	21{1}2
Steinhaus-Moser Notation	4[3]	5[3]
PlantStar's Debut Notation	[1]	[2]
H* function	H(-0.2)	H(-0.1)
Bashicu matrix system with respect to version 4	(0)[21]	(0)[22]
m(n) map	m(1)(4)	m(1)(5)
s(n) map	\(s(1)(\lambda x . x+1)(226)\)	\(s(1)(\lambda x . x+1)(227)\)