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213311200 = 25522311593
BaseRepresentation
bin11001011011011…
…01111011100000
3112212101022221211
430231231323200
5414101424300
633055555504
75200054354
oct1455557340
9485338854
10213311200
11aa454953
125b52bb94
133526805b
1420489464
1513ad84ba
hexcb6dee0

213311200 has 72 divisors (see below), whose sum is σ = 543433968. Its totient is φ = 81607680.

The previous prime is 213311173. The next prime is 213311201. The reversal of 213311200 is 2113312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213311201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12604 + ... + 24196.

It is an arithmetic number, because the mean of its divisors is an integer number (7547694).

Almost surely, 2213311200 is an apocalyptic number.

213311200 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 213311200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271716984).

213311200 is an abundant number, since it is smaller than the sum of its proper divisors (330122768).

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

213311200 is a wasteful number, since it uses less digits than its factorization.

213311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11636 (or 11623 counting only the distinct ones).

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

The square root of 213311200 is about 14605.1771642798. The cubic root of 213311200 is about 597.4999679044.

Adding to 213311200 its reverse (2113312), we get a palindrome (215424512).

The spelling of 213311200 in words is "two hundred thirteen million, three hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 23 25 32 40 46 50 80 92 100 115 160 184 200 230 368 400 460 575 736 800 920 1150 1840 2300 3680 4600 9200 11593 18400 23186 46372 57965 92744 115930 185488 231860 266639 289825 370976 463720 533278 579650 927440 1066556 1159300 1333195 1854880 2133112 2318600 2666390 4266224 4637200 5332780 6665975 8532448 9274400 10665560 13331950 21331120 26663900 42662240 53327800 106655600 213311200