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245

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245

245

数表 — 整数

<< 240 241 242 243 244 245 246 247 248 249 >>

命名

二百四十五

贰佰肆拾伍

第二百四十五
two hundred and forty-fifth

识别

种类

整数

性质

素因数分解

{\displaystyle 5\times 7^{2))

表示方式

245

ΣΜΕ´

CCXLV

๒๔๕

孟加拉数字

২৪৫

२४५

摩尔斯电码

· · − − − · · · · − · · · · ·

២៤៥

11110101₍₂₎

100002₍₃₎

3311₍₄₎

1440₍₅₎

365₍₈₎

185₍₁₂₎

F5₍₁₆₎

245是244与246之间的自然数。

在数学中

合数，正约数有1、5、7、35、49和245。
素因数分解为 ${\displaystyle 5\times 7^{2))$ 。
亏数，真约数和为97，亏度为148。
十进制的等数位数。
第46个素数+46（199+46）

在人类文化中

在东晋及十六国，1丈 = 245公分
名古屋车站高度245米，是世界第一高的车站建筑

分类

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