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68465329 = 312208559
BaseRepresentation
bin1000001010010…
…11001010110001
311202211101202221
410011023022301
5120011342304
610443241041
71460642242
oct405131261
9152741687
1068465329
1135713019
121ab19181
131125213a
149142cc9
156026054
hex414b2b1

68465329 has 4 divisors (see below), whose sum is σ = 70673920. Its totient is φ = 66256740.

The previous prime is 68465291. The next prime is 68465381. The reversal of 68465329 is 92356486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92356486 = 246178243.

It is a cyclic number.

It is not a de Polignac number, because 68465329 - 217 = 68334257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68465389) 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 3 ways as a sum of consecutive naturals, for example, 1104249 + ... + 1104310.

It is an arithmetic number, because the mean of its divisors is an integer number (17668480).

Almost surely, 268465329 is an apocalyptic number.

It is an amenable number.

68465329 is a deficient number, since it is larger than the sum of its proper divisors (2208591).

68465329 is a wasteful number, since it uses less digits than its factorization.

68465329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208590.

The product of its digits is 311040, while the sum is 43.

The square root of 68465329 is about 8274.3778618093. The cubic root of 68465329 is about 409.0944300468.

The spelling of 68465329 in words is "sixty-eight million, four hundred sixty-five thousand, three hundred twenty-nine".

Divisors: 1 31 2208559 68465329