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68334291 = 3241918121
BaseRepresentation
bin1000001001010…
…11001011010011
311202120202000200
410010223023103
5114443144131
610440350243
71456555224
oct404531323
9152522020
1068334291
1135633623
121aa75383
13112075bc
14910b24b
155eec2e6
hex412b2d3

68334291 has 12 divisors (see below), whose sum is σ = 98946120. Its totient is φ = 45444960.

The previous prime is 68334283. The next prime is 68334307. The reversal of 68334291 is 19243386.

It is not a de Polignac number, because 68334291 - 23 = 68334283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68334221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5290 + ... + 12831.

It is an arithmetic number, because the mean of its divisors is an integer number (8245510).

Almost surely, 268334291 is an apocalyptic number.

68334291 is a deficient number, since it is larger than the sum of its proper divisors (30611829).

68334291 is a wasteful number, since it uses less digits than its factorization.

68334291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18546 (or 18543 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 68334291 is about 8266.4557701593. The cubic root of 68334291 is about 408.8332703565.

The spelling of 68334291 in words is "sixty-eight million, three hundred thirty-four thousand, two hundred ninety-one".

Divisors: 1 3 9 419 1257 3771 18121 54363 163089 7592699 22778097 68334291