347

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347 < 346 | 348 >
All Numbers
300	301	302	303	304	305	306	307	308	309
310	311	312	313	314	315	316	317	318	319
320	321	322	323	324	325	326	327	328	329
330	331	332	333	334	335	336	337	338	339
340	341	342	343	344	345	346	347	348	349
350	351	352	353	354	355	356	357	358	359
360	361	362	363	364	365	366	367	368	369
370	371	372	373	374	375	376	377	378	379
380	381	382	383	384	385	386	387	388	389
390	391	392	393	394	395	396	397	398	399

347 is the number following 346 and preceding 348.

Properties

• It is the 69th prime number. It is also a safe prime number.
• 347 is an odd number .
• 347 is an unhappy number.
  

• 347 is deficient.

Approximations

Notation	Lower bound	Upper bound
Up-arrow notation	7 ↑ 3
Scientific notation	3.47 x 102	3.471 x 102
Slow-growing hierarchy	\(g_{\omega^{\omega}}(4)\)	\(g_{\omega^{\omega}}(5)\)
Copy notation	3[3]	4[3]
Chained arrow notation	7 → 3
Bowers' Exploding Array Function/Bird's array notation	{7,3}
Fast-growing hierarchy	f2(5)	f2(6)
Hardy hierarchy	Hω(173)	Hω(174)
Middle-growing hierarchy	m(ω,8)	m(ω,9)
Hyper-E notation	E2.5403
Hyper-E notation (non-10 base)	\(E[7]3\)
Hyperfactorial array notation	5!	6!
X-Sequence Hyper-Exponential Notation	7{1}3
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)[18]	(0)[19]
m(n) map	m(1)(4)	m(1)(5)
s(n) map	\(s(1)(\lambda x . x+1)(172)\)	\(s(1)(\lambda x . x+1)(173)\)