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68504838 = 2311417473
BaseRepresentation
bin1000001010101…
…00110100000110
311202220101222020
410011110310012
5120014123323
610444144010
71461165363
oct405246406
9152811866
1068504838
113573a776
121ab38006
131126710c
14915346a
156032ae3
hex4154d06

68504838 has 8 divisors (see below), whose sum is σ = 137009688. Its totient is φ = 22834944.

The previous prime is 68504837. The next prime is 68504851. The reversal of 68504838 is 83840586.

It is a sphenic number, since it is the product of 3 distinct primes.

68504838 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 68504838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68504837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5708731 + ... + 5708742.

It is an arithmetic number, because the mean of its divisors is an integer number (17126211).

Almost surely, 268504838 is an apocalyptic number.

68504838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68504838 is a wasteful number, since it uses less digits than its factorization.

68504838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417478.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 68504838 is about 8276.7649477317. The cubic root of 68504838 is about 409.1731063834.

The spelling of 68504838 in words is "sixty-eight million, five hundred four thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 11417473 22834946 34252419 68504838