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68905941 = 3137324203
BaseRepresentation
bin1000001101101…
…10101111010101
311210122210011220
410012312233111
5120114442231
610500520553
71464455646
oct406665725
9153583156
1068905941
1135994065
121b0b0159
1311377860
1492196cd
1560b1896
hex41b6bd5

68905941 has 16 divisors (see below), whose sum is σ = 100301376. Its totient is φ = 41821056.

The previous prime is 68905919. The next prime is 68905957. The reversal of 68905941 is 14950986.

It is not a de Polignac number, because 68905941 - 210 = 68904917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68905893 and 68905902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68905241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9255 + ... + 14948.

It is an arithmetic number, because the mean of its divisors is an integer number (6268836).

Almost surely, 268905941 is an apocalyptic number.

It is an amenable number.

68905941 is a deficient number, since it is larger than the sum of its proper divisors (31395435).

68905941 is a wasteful number, since it uses less digits than its factorization.

68905941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24292.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 68905941 is about 8300.9602456583. The cubic root of 68905941 is about 409.9701366311.

The spelling of 68905941 in words is "sixty-eight million, nine hundred five thousand, nine hundred forty-one".

Divisors: 1 3 13 39 73 219 949 2847 24203 72609 314639 943917 1766819 5300457 22968647 68905941