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68047341 = 3195772069
BaseRepresentation
bin1000000111001…
…01000111101101
311202001011101220
410003211013231
5114410003331
610430253553
71454251515
oct403450755
9152034356
1068047341
1135457a7a
121a9572b9
1311136acb
149074845
155e92296
hex40e51ed

68047341 has 16 divisors (see below), whose sum is σ = 95716800. Its totient is φ = 42882048.

The previous prime is 68047339. The next prime is 68047351. The reversal of 68047341 is 14374086.

It is not a de Polignac number, because 68047341 - 21 = 68047339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68047321) 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 15 ways as a sum of consecutive naturals, for example, 31855 + ... + 33923.

It is an arithmetic number, because the mean of its divisors is an integer number (5982300).

Almost surely, 268047341 is an apocalyptic number.

It is an amenable number.

68047341 is a deficient number, since it is larger than the sum of its proper divisors (27669459).

68047341 is a wasteful number, since it uses less digits than its factorization.

68047341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68047341 is about 8249.0812215664. The cubic root of 68047341 is about 408.2602086280.

The spelling of 68047341 in words is "sixty-eight million, forty-seven thousand, three hundred forty-one".

Divisors: 1 3 19 57 577 1731 2069 6207 10963 32889 39311 117933 1193813 3581439 22682447 68047341