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213208200 = 23355241107
BaseRepresentation
bin11001011010101…
…00110010001000
3112212012002200000
430231110302020
5414040130300
633053443000
75166145152
oct1455246210
9485162600
10213208200
11aa394527
125b4a0460
13352301ca
142045dad2
1513ab7c00
hexcb54c88

213208200 has 288 divisors, whose sum is σ = 767763360. Its totient is φ = 54950400.

The previous prime is 213208199. The next prime is 213208207. The reversal of 213208200 is 2802312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213208207) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1992547 + ... + 1992653.

It is an arithmetic number, because the mean of its divisors is an integer number (2665845).

Almost surely, 2213208200 is an apocalyptic number.

213208200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213208200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383881680).

213208200 is an abundant number, since it is smaller than the sum of its proper divisors (554555160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213208200 is a wasteful number, since it uses less digits than its factorization.

213208200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 213208200 is about 14601.6505916283. The cubic root of 213208200 is about 597.4037822925.

The spelling of 213208200 in words is "two hundred thirteen million, two hundred eight thousand, two hundred".