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223340532 = 22318611711
BaseRepresentation
bin11010100111111…
…10011111110100
3120120020212121120
431103332133310
5424133344112
634054543540
75351235402
oct1523763764
9516225546
10223340532
11105085058
1262967bb0
133736a07c
142193a472
1514919e8c
hexd4fe7f4

223340532 has 12 divisors (see below), whose sum is σ = 521127936. Its totient is φ = 74446840.

The previous prime is 223340527. The next prime is 223340539. The reversal of 223340532 is 235043322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223340539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9305844 + ... + 9305867.

It is an arithmetic number, because the mean of its divisors is an integer number (43427328).

Almost surely, 2223340532 is an apocalyptic number.

It is an amenable number.

223340532 is an abundant number, since it is smaller than the sum of its proper divisors (297787404).

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

223340532 is a wasteful number, since it uses less digits than its factorization.

223340532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18611718 (or 18611716 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 223340532 is about 14944.5820282803. The cubic root of 223340532 is about 606.7212164986.

Adding to 223340532 its reverse (235043322), we get a palindrome (458383854).

The spelling of 223340532 in words is "two hundred twenty-three million, three hundred forty thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 18611711 37223422 55835133 74446844 111670266 223340532