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68589833 = 132405857
BaseRepresentation
bin1000001011010…
…01100100001001
311210001201120012
410011221210021
5120024333313
610450041305
71462001234
oct405514411
9153051505
1068589833
1135798614
121ab79235
1311296a00
14917641b
15604cda8
hex4169909

68589833 has 6 divisors (see below), whose sum is σ = 74272014. Its totient is φ = 63313536.

The previous prime is 68589827. The next prime is 68589839. The reversal of 68589833 is 33898586.

It is an interprime number because it is at equal distance from previous prime (68589827) and next prime (68589839).

It can be written as a sum of positive squares in 3 ways, for example, as 906304 + 67683529 = 952^2 + 8227^2 .

It is not a de Polignac number, because 68589833 - 24 = 68589817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68589839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202760 + ... + 203097.

It is an arithmetic number, because the mean of its divisors is an integer number (12378669).

Almost surely, 268589833 is an apocalyptic number.

It is an amenable number.

68589833 is a deficient number, since it is larger than the sum of its proper divisors (5682181).

68589833 is a wasteful number, since it uses less digits than its factorization.

68589833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405883 (or 405870 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 68589833 is about 8281.8979105034. The cubic root of 68589833 is about 409.3422588892.

The spelling of 68589833 in words is "sixty-eight million, five hundred eighty-nine thousand, eight hundred thirty-three".

Divisors: 1 13 169 405857 5276141 68589833