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68633454 = 2317239581
BaseRepresentation
bin1000001011101…
…00001101101110
311210010221101210
410011310031232
5120032232304
610451015250
71462242351
oct405641556
9153127353
1068633454
113581836a
121ab9a526
13112b0816
149188298
15605ac89
hex417436e

68633454 has 24 divisors (see below), whose sum is σ = 145820088. Its totient is φ = 21531520.

The previous prime is 68633431. The next prime is 68633497. The reversal of 68633454 is 45433686.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 18057 + ... + 21524.

It is an arithmetic number, because the mean of its divisors is an integer number (6075837).

Almost surely, 268633454 is an apocalyptic number.

68633454 is an abundant number, since it is smaller than the sum of its proper divisors (77186634).

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

68633454 is a wasteful number, since it uses less digits than its factorization.

68633454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39620 (or 39603 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 68633454 is about 8284.5310066412. The cubic root of 68633454 is about 409.4290168141.

The spelling of 68633454 in words is "sixty-eight million, six hundred thirty-three thousand, four hundred fifty-four".

Divisors: 1 2 3 6 17 34 51 102 289 578 867 1734 39581 79162 118743 237486 672877 1345754 2018631 4037262 11438909 22877818 34316727 68633454