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68883633 = 32713151557
BaseRepresentation
bin1000001101100…
…01010010110001
311210121122120200
410012301102301
5120113234013
610500225413
71464333630
oct406612261
9153548520
1068883633
1135979325
121b09b269
131136a660
149211517
1560a9e73
hex41b14b1

68883633 has 48 divisors (see below), whose sum is σ = 123492096. Its totient is φ = 36028800.

The previous prime is 68883631. The next prime is 68883641. The reversal of 68883633 is 33638886.

It is a happy number.

68883633 is a `hidden beast` number, since 6 + 8 + 8 + 8 + 3 + 633 = 666.

It is not a de Polignac number, because 68883633 - 21 = 68883631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68883631) 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 47 ways as a sum of consecutive naturals, for example, 123391 + ... + 123947.

It is an arithmetic number, because the mean of its divisors is an integer number (2572752).

Almost surely, 268883633 is an apocalyptic number.

68883633 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68883633 is a deficient number, since it is larger than the sum of its proper divisors (54608463).

68883633 is a wasteful number, since it uses less digits than its factorization.

68883633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 731 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 68883633 is about 8299.6164369204. The cubic root of 68883633 is about 409.9258898371.

The spelling of 68883633 in words is "sixty-eight million, eight hundred eighty-three thousand, six hundred thirty-three".

Divisors: 1 3 7 9 13 21 39 63 91 117 151 273 453 557 819 1057 1359 1671 1963 3171 3899 5013 5889 7241 9513 11697 13741 17667 21723 35091 41223 50687 65169 84107 123669 152061 252321 456183 588749 756963 1093391 1766247 3280173 5298741 7653737 9840519 22961211 68883633