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68884973 is a prime number
BaseRepresentation
bin1000001101100…
…01100111101101
311210121201102022
410012301213231
5120113304343
610500235525
71464340553
oct406614755
9153551368
1068884973
113597a333
121b09bba5
131136b151
149211bd3
1560aa568
hex41b19ed

68884973 has 2 divisors, whose sum is σ = 68884974. Its totient is φ = 68884972.

The previous prime is 68884957. The next prime is 68884987. The reversal of 68884973 is 37948886.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67601284 + 1283689 = 8222^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 68884973 - 24 = 68884957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68884903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34442486 + 34442487.

It is an arithmetic number, because the mean of its divisors is an integer number (34442487).

Almost surely, 268884973 is an apocalyptic number.

It is an amenable number.

68884973 is a deficient number, since it is larger than the sum of its proper divisors (1).

68884973 is an equidigital number, since it uses as much as digits as its factorization.

68884973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 53.

The square root of 68884973 is about 8299.6971631500. The cubic root of 68884973 is about 409.9285479293.

The spelling of 68884973 in words is "sixty-eight million, eight hundred eighty-four thousand, nine hundred seventy-three".