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68239328 = 2510512029
BaseRepresentation
bin1000001000100…
…11111111100000
311202101220202112
410010103333200
5114432124303
610434334452
71456011323
oct404237740
9152356675
1068239328
1135579243
121aa2a428
13111a3301
1490c47ba
155ece0d8
hex4113fe0

68239328 has 24 divisors (see below), whose sum is σ = 134540280. Its totient is φ = 34070400.

The previous prime is 68239319. The next prime is 68239351. The reversal of 68239328 is 82393286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32618 + ... + 34646.

It is an arithmetic number, because the mean of its divisors is an integer number (5605845).

Almost surely, 268239328 is an apocalyptic number.

It is an amenable number.

68239328 is a deficient number, since it is larger than the sum of its proper divisors (66300952).

68239328 is a wasteful number, since it uses less digits than its factorization.

68239328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090 (or 3082 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 68239328 is about 8260.7098968551. The cubic root of 68239328 is about 408.6437996845.

The spelling of 68239328 in words is "sixty-eight million, two hundred thirty-nine thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 16 32 1051 2029 2102 4058 4204 8116 8408 16232 16816 32464 33632 64928 2132479 4264958 8529916 17059832 34119664 68239328