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68533223 = 1122732741
BaseRepresentation
bin1000001010110…
…11101111100111
311202221211220112
410011123233213
5120021030343
610444523235
71461344213
oct405335747
9152854815
1068533223
113575a030
121ab5051b
1311277005
14915d943
15603b218
hex415bbe7

68533223 has 8 divisors (see below), whose sum is σ = 74823696. Its totient is φ = 62252800.

The previous prime is 68533207. The next prime is 68533229. The reversal of 68533223 is 32233586.

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 68533223 - 24 = 68533207 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 68533223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68533229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23633 + ... + 26373.

It is an arithmetic number, because the mean of its divisors is an integer number (9352962).

Almost surely, 268533223 is an apocalyptic number.

68533223 is a deficient number, since it is larger than the sum of its proper divisors (6290473).

68533223 is a wasteful number, since it uses less digits than its factorization.

68533223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025.

The product of its digits is 25920, while the sum is 32.

The square root of 68533223 is about 8278.4795101516. The cubic root of 68533223 is about 409.2296122458.

The spelling of 68533223 in words is "sixty-eight million, five hundred thirty-three thousand, two hundred twenty-three".

Divisors: 1 11 2273 2741 25003 30151 6230293 68533223