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68477207 = 1729138899
BaseRepresentation
bin1000001010011…
…10000100010111
311202212000001212
410011032010113
5120012232312
610443412035
71461022001
oct405160427
9152760055
1068477207
1135720a37
121ab2401b
1311257676
149147371
156029822
hex414e117

68477207 has 8 divisors (see below), whose sum is σ = 75006000. Its totient is φ = 62226304.

The previous prime is 68477203. The next prime is 68477221. The reversal of 68477207 is 70277486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68477207 - 22 = 68477203 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 (68477203) 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 7 ways as a sum of consecutive naturals, for example, 68957 + ... + 69942.

It is an arithmetic number, because the mean of its divisors is an integer number (9375750).

Almost surely, 268477207 is an apocalyptic number.

68477207 is a deficient number, since it is larger than the sum of its proper divisors (6528793).

68477207 is a wasteful number, since it uses less digits than its factorization.

68477207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138945.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 68477207 is about 8275.0955885718. The cubic root of 68477207 is about 409.1180865102.

The spelling of 68477207 in words is "sixty-eight million, four hundred seventy-seven thousand, two hundred seven".

Divisors: 1 17 29 493 138899 2361283 4028071 68477207