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68524452 = 22322382759
BaseRepresentation
bin1000001010110…
…01100110100100
311202221101212200
410011121212210
5120020240302
610444414500
71461306513
oct405314644
9152841780
1068524452
1135753487
121ab47430
1311273019
14915a67a
15603881c
hex41599a4

68524452 has 36 divisors (see below), whose sum is σ = 180747840. Its totient is φ = 21848112.

The previous prime is 68524447. The next prime is 68524453. The reversal of 68524452 is 25442586.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68524453) 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 11 ways as a sum of consecutive naturals, for example, 40552 + ... + 42207.

Almost surely, 268524452 is an apocalyptic number.

It is an amenable number.

68524452 is an abundant number, since it is smaller than the sum of its proper divisors (112223388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68524452 is a wasteful number, since it uses less digits than its factorization.

68524452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82792 (or 82787 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 68524452 is about 8277.9497461630. The cubic root of 68524452 is about 409.2121535306.

The spelling of 68524452 in words is "sixty-eight million, five hundred twenty-four thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 82759 165518 248277 331036 496554 744831 993108 1489662 1903457 2979324 3806914 5710371 7613828 11420742 17131113 22841484 34262226 68524452