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68965518 = 2311494253
BaseRepresentation
bin1000001110001…
…01010010001110
311210202210220110
410013011102032
5120123344033
610502100450
71465124436
oct407052216
9153683813
1068965518
1135a248a6
121b11a726
13113989cb
1492332c6
1560c4363
hex41c548e

68965518 has 8 divisors (see below), whose sum is σ = 137931048. Its totient is φ = 22988504.

The previous prime is 68965511. The next prime is 68965529. The reversal of 68965518 is 81556986.

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

68965518 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68965511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5747121 + ... + 5747132.

It is an arithmetic number, because the mean of its divisors is an integer number (17241381).

Almost surely, 268965518 is an apocalyptic number.

68965518 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.

68965518 is a wasteful number, since it uses less digits than its factorization.

68965518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11494258.

The product of its digits is 518400, while the sum is 48.

The square root of 68965518 is about 8304.5480310490. The cubic root of 68965518 is about 410.0882578193.

The spelling of 68965518 in words is "sixty-eight million, nine hundred sixty-five thousand, five hundred eighteen".

Divisors: 1 2 3 6 11494253 22988506 34482759 68965518