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68844589 = 1123211831
BaseRepresentation
bin1000001101001…
…11110000101101
311210112200000121
410012213300231
5120111011324
610455324541
71464112042
oct406476055
9153480017
1068844589
1135951a60
121b080751
1311355958
1492011c9
15609d5e4
hex41a7c2d

68844589 has 12 divisors (see below), whose sum is σ = 78517152. Its totient is φ = 59859800.

The previous prime is 68844571. The next prime is 68844641. The reversal of 68844589 is 98544886.

It is not a de Polignac number, because 68844589 - 25 = 68844557 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 (68844689) 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 11 ways as a sum of consecutive naturals, for example, 97 + ... + 11734.

It is an arithmetic number, because the mean of its divisors is an integer number (6543096).

Almost surely, 268844589 is an apocalyptic number.

It is an amenable number.

68844589 is a deficient number, since it is larger than the sum of its proper divisors (9672563).

68844589 is a wasteful number, since it uses less digits than its factorization.

68844589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11888 (or 11865 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The square root of 68844589 is about 8297.2639466272. The cubic root of 68844589 is about 409.8484250333.

The spelling of 68844589 in words is "sixty-eight million, eight hundred forty-four thousand, five hundred eighty-nine".

Divisors: 1 11 23 253 529 5819 11831 130141 272113 2993243 6258599 68844589