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68047403 = 378592141
BaseRepresentation
bin1000000111001…
…01001000101011
311202001011111012
410003211020223
5114410004103
610430254135
71454251634
oct403451053
9152034435
1068047403
1135458026
121a95734b
1311136b48
14907488b
155e922d8
hex40e522b

68047403 has 8 divisors (see below), whose sum is σ = 70000560. Its totient is φ = 66100320.

The previous prime is 68047393. The next prime is 68047423. The reversal of 68047403 is 30474086.

It is a happy number.

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 68047403 - 26 = 68047339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68047403.

It is not an unprimeable number, because it can be changed into a prime (68047423) 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, 30713 + ... + 32853.

It is an arithmetic number, because the mean of its divisors is an integer number (8750070).

Almost surely, 268047403 is an apocalyptic number.

68047403 is a deficient number, since it is larger than the sum of its proper divisors (1953157).

68047403 is a wasteful number, since it uses less digits than its factorization.

68047403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 68047403 is about 8249.0849795599. The cubic root of 68047403 is about 408.2603326207.

The spelling of 68047403 in words is "sixty-eight million, forty-seven thousand, four hundred three".

Divisors: 1 37 859 2141 31783 79217 1839119 68047403