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68264351 = 471452433
BaseRepresentation
bin1000001000110…
…10000110011111
311202110012002022
410010122012133
5114433424401
610435050355
71456144301
oct404320637
9152405068
1068264351
1135596021
121aa409bb
13111b180c
1490cd971
155ed671b
hex411a19f

68264351 has 4 divisors (see below), whose sum is σ = 69716832. Its totient is φ = 66811872.

The previous prime is 68264341. The next prime is 68264353. The reversal of 68264351 is 15346286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15346286 = 27673143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68264351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68264353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726170 + ... + 726263.

It is an arithmetic number, because the mean of its divisors is an integer number (17429208).

Almost surely, 268264351 is an apocalyptic number.

68264351 is a deficient number, since it is larger than the sum of its proper divisors (1452481).

68264351 is a wasteful number, since it uses less digits than its factorization.

68264351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452480.

The product of its digits is 34560, while the sum is 35.

The square root of 68264351 is about 8262.2243373077. The cubic root of 68264351 is about 408.6937427524.

The spelling of 68264351 in words is "sixty-eight million, two hundred sixty-four thousand, three hundred fifty-one".

Divisors: 1 47 1452433 68264351