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211133200 = 24521761509
BaseRepresentation
bin11001001010110…
…10001100010000
3112201021200022011
430211122030100
5413022230300
632541152304
75142413455
oct1445321420
9481250264
10211133200
11a91a7553
125a85b694
13349848b5
142007d82c
1513807eba
hexc95a310

211133200 has 120 divisors (see below), whose sum is σ = 546962760. Its totient is φ = 78028800.

The previous prime is 211133189. The next prime is 211133213. The reversal of 211133200 is 2331112.

211133200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 52070656 + 159062544 = 7216^2 + 12612^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414546 + ... + 415054.

It is an arithmetic number, because the mean of its divisors is an integer number (4558023).

Almost surely, 2211133200 is an apocalyptic number.

211133200 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 211133200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273481380).

211133200 is an abundant number, since it is smaller than the sum of its proper divisors (335829560).

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

211133200 is a wasteful number, since it uses less digits than its factorization.

211133200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 211133200 is about 14530.4232560514. The cubic root of 211133200 is about 595.4594290742.

Adding to 211133200 its reverse (2331112), we get a palindrome (213464312).

The spelling of 211133200 in words is "two hundred eleven million, one hundred thirty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 61 68 80 85 100 122 136 170 200 244 272 305 340 400 425 488 509 610 680 850 976 1018 1037 1220 1360 1525 1700 2036 2074 2440 2545 3050 3400 4072 4148 4880 5090 5185 6100 6800 8144 8296 8653 10180 10370 12200 12725 16592 17306 20360 20740 24400 25450 25925 31049 34612 40720 41480 43265 50900 51850 62098 69224 82960 86530 101800 103700 124196 138448 155245 173060 203600 207400 216325 248392 310490 346120 414800 432650 496784 527833 620980 692240 776225 865300 1055666 1241960 1552450 1730600 2111332 2483920 2639165 3104900 3461200 4222664 5278330 6209800 8445328 10556660 12419600 13195825 21113320 26391650 42226640 52783300 105566600 211133200