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72344353 = 613313583
BaseRepresentation
bin1000100111111…
…10001100100001
312001010110210111
410103332030201
5122010004403
611102331321
71535626324
oct423761441
9161113714
1072344353
1137922424
1220289b41
1311cac913
1498727bb
15654056d
hex44fe321

72344353 has 8 divisors (see below), whose sum is σ = 73773056. Its totient is φ = 70923600.

The previous prime is 72344351. The next prime is 72344399. The reversal of 72344353 is 35344327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72344353 - 21 = 72344351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72344351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18400 + ... + 21982.

It is an arithmetic number, because the mean of its divisors is an integer number (9221632).

Almost surely, 272344353 is an apocalyptic number.

It is an amenable number.

72344353 is a deficient number, since it is larger than the sum of its proper divisors (1428703).

72344353 is a wasteful number, since it uses less digits than its factorization.

72344353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975.

The product of its digits is 30240, while the sum is 31.

The square root of 72344353 is about 8505.5483656258. The cubic root of 72344353 is about 416.6789351765.

The spelling of 72344353 in words is "seventy-two million, three hundred forty-four thousand, three hundred fifty-three".

Divisors: 1 61 331 3583 20191 218563 1185973 72344353