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56234521 = 717472559
BaseRepresentation
bin1101011010000…
…1001000011001
310220211000021001
43112201020121
5103344001041
65325145001
71251662020
oct326411031
9126730231
1056234521
1129819912
12169bb161
13b85c085
14767b8b7
154e0c131
hex35a1219

56234521 has 8 divisors (see below), whose sum is σ = 68048640. Its totient is φ = 45365568.

The previous prime is 56234467. The next prime is 56234531. The reversal of 56234521 is 12543265.

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 56234521 - 225 = 22680089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56234521.

It is not an unprimeable number, because it can be changed into a prime (56234531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 236161 + ... + 236398.

It is an arithmetic number, because the mean of its divisors is an integer number (8506080).

Almost surely, 256234521 is an apocalyptic number.

It is an amenable number.

56234521 is a deficient number, since it is larger than the sum of its proper divisors (11814119).

56234521 is a wasteful number, since it uses less digits than its factorization.

56234521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472583.

The product of its digits is 7200, while the sum is 28.

The square root of 56234521 is about 7498.9679956645. The cubic root of 56234521 is about 383.1195671837.

Adding to 56234521 its reverse (12543265), we get a palindrome (68777786).

The spelling of 56234521 in words is "fifty-six million, two hundred thirty-four thousand, five hundred twenty-one".

Divisors: 1 7 17 119 472559 3307913 8033503 56234521