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63648293 = 475772347
BaseRepresentation
bin1111001011001…
…1001000100101
311102202200001012
43302303020211
5112243221133
610152112005
71402000352
oct362631045
9142680035
1063648293
1132a229a5
1219395605
1310256717
14864b629
1558c3b48
hex3cb3225

63648293 has 8 divisors (see below), whose sum is σ = 65142912. Its totient is φ = 62159616.

The previous prime is 63648269. The next prime is 63648307. The reversal of 63648293 is 39284636.

63648293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63648293 - 220 = 62599717 is a prime.

It is a super-2 number, since 2×636482932 = 8102210403627698, which contains 22 as substring.

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 63648293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63648223) 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, 25946 + ... + 28292.

It is an arithmetic number, because the mean of its divisors is an integer number (8142864).

Almost surely, 263648293 is an apocalyptic number.

It is an amenable number.

63648293 is a deficient number, since it is larger than the sum of its proper divisors (1494619).

63648293 is a wasteful number, since it uses less digits than its factorization.

63648293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its digits is 186624, while the sum is 41.

The square root of 63648293 is about 7977.9880295724. The cubic root of 63648293 is about 399.2659307633.

The spelling of 63648293 in words is "sixty-three million, six hundred forty-eight thousand, two hundred ninety-three".

Divisors: 1 47 577 2347 27119 110309 1354219 63648293