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68000497 = 103660199
BaseRepresentation
bin1000000110110…
…01101011110001
311201221210010221
410003121223301
5114402003442
610425253041
71453665115
oct403315361
9151853127
1068000497
1135425864
121a934181
131111b6a6
149061745
155e83467
hex40d9af1

68000497 has 4 divisors (see below), whose sum is σ = 68660800. Its totient is φ = 67340196.

The previous prime is 68000479. The next prime is 68000507. The reversal of 68000497 is 79400086.

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.

It is a cyclic number.

It is not a de Polignac number, because 68000497 - 211 = 67998449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68000417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329997 + ... + 330202.

It is an arithmetic number, because the mean of its divisors is an integer number (17165200).

Almost surely, 268000497 is an apocalyptic number.

It is an amenable number.

68000497 is a deficient number, since it is larger than the sum of its proper divisors (660303).

68000497 is a wasteful number, since it uses less digits than its factorization.

68000497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660302.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 68000497 is about 8246.2413862317. The cubic root of 68000497 is about 408.1665045925.

The spelling of 68000497 in words is "sixty-eight million, four hundred ninety-seven", and thus it is an aban number.

Divisors: 1 103 660199 68000497