720

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720 < 719 | 721 >
All Numbers
700	701	702	703	704	705	706	707	708	709
710	711	712	713	714	715	716	717	718	719
720	721	722	723	724	725	726	727	728	729
730	731	732	733	734	735	736	737	738	739
740	741	742	743	744	745	746	747	748	749
750	751	752	753	754	755	756	757	758	759
760	761	762	763	764	765	766	767	768	769
770	771	772	773	774	775	776	777	778	779
780	781	782	783	784	785	786	787	788	789
790	791	792	793	794	795	796	797	798	799

720 is the number following 719 and preceding 721.

Properties

• Its factors are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360 and 720, making it a composite number.
• 720 is an even number .
• 720 is an unhappy number.
  

• 720 is a factorial.
  
• 720 is abundant and superabundant.
  
• Its prime factorization is 2⁴ × 3² × 5¹.
  

Approximations

Notation	Lower bound	Upper bound
Up-arrow notation	27 ↑ 2
Scientific notation	7.2 x 102	7.201 x 102
Slow-growing hierarchy	\(g_{\omega^{\omega}}(4)\)	\(g_{\omega^{\omega}}(5)\)
Copy notation	6[3]	7[3]
Chained arrow notation	27 → 2
Bowers' Exploding Array Function/Bird's array notation	{27,2}
Fast-growing hierarchy	f2(6)	f2(7)
Hardy hierarchy	Hω(360)	Hω(360)
Middle-growing hierarchy	m(ω,9)	m(ω,10)
Hyper-E notation	E2.8573
Hyper-E notation (non-10 base)	\(E[27]2\)
Hyperfactorial array notation	6!	7!
X-Sequence Hyper-Exponential Notation	27{1}2
Steinhaus-Moser Notation	4[3]	5[3]
PlantStar's Debut Notation	[1]	[2]
H* function	H(-0.1)	H(-0)
Bashicu matrix system with respect to version 4	(0)[26]	(0)[27]
m(n) map	m(1)(4)	m(1)(5)
s(n) map	\(s(1)(\lambda x . x+1)(359)\)	\(s(1)(\lambda x . x+1)(360)\)