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68468364 = 22321901899
BaseRepresentation
bin1000001010010…
…11111010001100
311202211112221100
410011023322030
5120011441424
610443303100
71460654136
oct405137214
9152745840
1068468364
1135715328
121ab1aa90
1311253633
149144056
156026dc9
hex414be8c

68468364 has 18 divisors (see below), whose sum is σ = 173072900. Its totient is φ = 22822776.

The previous prime is 68468347. The next prime is 68468369. The reversal of 68468364 is 46386486.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (68468369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 950914 + ... + 950985.

Almost surely, 268468364 is an apocalyptic number.

It is an amenable number.

68468364 is an abundant number, since it is smaller than the sum of its proper divisors (104604536).

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

68468364 is a wasteful number, since it uses less digits than its factorization.

68468364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901909 (or 1901904 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 68468364 is about 8274.5612572510. The cubic root of 68468364 is about 409.1004748740.

The spelling of 68468364 in words is "sixty-eight million, four hundred sixty-eight thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 1901899 3803798 5705697 7607596 11411394 17117091 22822788 34234182 68468364