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68453248 = 274312437
BaseRepresentation
bin1000001010010…
…00001110000000
311202210210012111
410011020032000
5120011000443
610443105104
71460562103
oct405101600
9152723174
1068453248
1135704a36
121ab12194
13112497a6
14913c73a
15602269d
hex4148380

68453248 has 32 divisors (see below), whose sum is σ = 139554360. Its totient is φ = 33427968.

The previous prime is 68453233. The next prime is 68453249. The reversal of 68453248 is 84235486.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 68453248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68453249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715 + ... + 11722.

Almost surely, 268453248 is an apocalyptic number.

It is an amenable number.

68453248 is an abundant number, since it is smaller than the sum of its proper divisors (71101112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68453248 is a wasteful number, since it uses less digits than its factorization.

68453248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12494 (or 12482 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 68453248 is about 8273.6478049286. The cubic root of 68453248 is about 409.0703664776.

The spelling of 68453248 in words is "sixty-eight million, four hundred fifty-three thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 32 43 64 86 128 172 344 688 1376 2752 5504 12437 24874 49748 99496 198992 397984 534791 795968 1069582 1591936 2139164 4278328 8556656 17113312 34226624 68453248