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213423200 = 2552192739
BaseRepresentation
bin11001011100010…
…01010001100000
3112212121000120222
430232021101200
5414114020300
633102222212
75201032034
oct1456112140
9485530528
10213423200
11aa521011
125b584968
13352a7023
14204b81c4
1513b0b785
hexcb89460

213423200 has 108 divisors (see below), whose sum is σ = 550628820. Its totient is φ = 80766720.

The previous prime is 213423167. The next prime is 213423229. The reversal of 213423200 is 2324312.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 288431 + ... + 289169.

It is an arithmetic number, because the mean of its divisors is an integer number (5098415).

Almost surely, 2213423200 is an apocalyptic number.

213423200 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 213423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275314410).

213423200 is an abundant number, since it is smaller than the sum of its proper divisors (337205620).

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

213423200 is a wasteful number, since it uses less digits than its factorization.

213423200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 213423200 is about 14609.0109179232. The cubic root of 213423200 is about 597.6045229514.

Adding to 213423200 its reverse (2324312), we get a palindrome (215747512).

It can be divided in two parts, 21342 and 3200, that added together give a palindrome (24542).

The spelling of 213423200 in words is "two hundred thirteen million, four hundred twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 76 80 95 100 152 160 190 200 304 361 380 400 475 608 722 739 760 800 950 1444 1478 1520 1805 1900 2888 2956 3040 3610 3695 3800 5776 5912 7220 7390 7600 9025 11552 11824 14041 14440 14780 15200 18050 18475 23648 28082 28880 29560 36100 36950 56164 57760 59120 70205 72200 73900 112328 118240 140410 144400 147800 224656 266779 280820 288800 295600 351025 449312 533558 561640 591200 702050 1067116 1123280 1333895 1404100 2134232 2246560 2667790 2808200 4268464 5335580 5616400 6669475 8536928 10671160 11232800 13338950 21342320 26677900 42684640 53355800 106711600 213423200