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68421103 = 378812099
BaseRepresentation
bin1000001010000…
…00010111101111
311202202011002221
410011000113233
5120003433403
610442300211
71460366302
oct405002757
9152664087
1068421103
1135692873
121aab7667
1311237c7a
149130b39
156017dbd
hex41405ef

68421103 has 8 divisors (see below), whose sum is σ = 70383600. Its totient is φ = 66464640.

The previous prime is 68421097. The next prime is 68421163. The reversal of 68421103 is 30112486.

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 68421103 - 217 = 68290031 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 (68421163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31548 + ... + 33646.

It is an arithmetic number, because the mean of its divisors is an integer number (8797950).

Almost surely, 268421103 is an apocalyptic number.

68421103 is a deficient number, since it is larger than the sum of its proper divisors (1962497).

68421103 is a wasteful number, since it uses less digits than its factorization.

68421103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 68421103 is about 8271.7049633071. The cubic root of 68421103 is about 409.0063245894.

Adding to 68421103 its reverse (30112486), we get a palindrome (98533589).

The spelling of 68421103 in words is "sixty-eight million, four hundred twenty-one thousand, one hundred three".

Divisors: 1 37 881 2099 32597 77663 1849219 68421103