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213324384 = 25371324419
BaseRepresentation
bin11001011011100…
…01001001100000
3112212102000001010
430231301021200
5414102340014
633100140520
75200140660
oct1455611140
9485360033
10213324384
11aa463849
125b537740
1335271060
14204901a0
1513adc359
hexcb71260

213324384 has 96 divisors (see below), whose sum is σ = 689230080. Its totient is φ = 56259072.

The previous prime is 213324373. The next prime is 213324389. The reversal of 213324384 is 483423312.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213324389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3474 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (7179480).

Almost surely, 2213324384 is an apocalyptic number.

213324384 is a gapful number since it is divisible by the number (24) 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 213324384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344615040).

213324384 is an abundant number, since it is smaller than the sum of its proper divisors (475905696).

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

213324384 is a wasteful number, since it uses less digits than its factorization.

213324384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24452 (or 24444 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 213324384 is about 14605.6285041076. The cubic root of 213324384 is about 597.5122774273.

Adding to 213324384 its reverse (483423312), we get a palindrome (696747696).

The spelling of 213324384 in words is "two hundred thirteen million, three hundred twenty-four thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 78 84 91 96 104 112 156 168 182 208 224 273 312 336 364 416 546 624 672 728 1092 1248 1456 2184 2912 4368 8736 24419 48838 73257 97676 146514 170933 195352 293028 317447 341866 390704 512799 586056 634894 683732 781408 952341 1025598 1172112 1269788 1367464 1904682 2051196 2222129 2344224 2539576 2734928 3809364 4102392 4444258 5079152 5469856 6666387 7618728 8204784 8888516 10158304 13332774 15237456 16409568 17777032 26665548 30474912 35554064 53331096 71108128 106662192 213324384