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68403454 = 273724383
BaseRepresentation
bin1000001001111…
…00000011111110
311202201020220021
410010330003332
5120002402304
610442042354
71460263660
oct404740376
9152636807
1068403454
1135680589
121aaa93ba
131122cc22
149128530
156012a54
hex413c0fe

68403454 has 48 divisors (see below), whose sum is σ = 124806528. Its totient is φ = 27524448.

The previous prime is 68403451. The next prime is 68403463. The reversal of 68403454 is 45430486.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68403451) 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 23 ways as a sum of consecutive naturals, for example, 824097 + ... + 824179.

It is an arithmetic number, because the mean of its divisors is an integer number (2600136).

Almost surely, 268403454 is an apocalyptic number.

68403454 is a deficient number, since it is larger than the sum of its proper divisors (56403074).

68403454 is a wasteful number, since it uses less digits than its factorization.

68403454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 68403454 is about 8270.6380648654. The cubic root of 68403454 is about 408.9711542834.

The spelling of 68403454 in words is "sixty-eight million, four hundred three thousand, four hundred fifty-four".

Divisors: 1 2 7 14 37 43 74 83 86 166 259 301 518 581 602 1162 1369 1591 2738 3071 3182 3569 6142 7138 9583 11137 19166 21497 22274 24983 42994 49966 58867 113627 117734 132053 227254 264106 412069 795389 824138 924371 1590778 1848742 4885961 9771922 34201727 68403454