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68194332 = 2233631429
BaseRepresentation
bin1000001000010…
…01000000011100
311202022122001000
410010021000130
5114424204312
610433350300
71455433203
oct404110034
9152278030
1068194332
1135548458
121aa08390
131118899b
1490b223a
155ec0adc
hex410901c

68194332 has 24 divisors (see below), whose sum is σ = 176800400. Its totient is φ = 22731408.

The previous prime is 68194331. The next prime is 68194349. The reversal of 68194332 is 23349186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68194331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315607 + ... + 315822.

Almost surely, 268194332 is an apocalyptic number.

It is an amenable number.

68194332 is an abundant number, since it is smaller than the sum of its proper divisors (108606068).

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

68194332 is a wasteful number, since it uses less digits than its factorization.

68194332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631442 (or 631434 counting only the distinct ones).

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

The square root of 68194332 is about 8257.9859530033. The cubic root of 68194332 is about 408.5539620504.

The spelling of 68194332 in words is "sixty-eight million, one hundred ninety-four thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 631429 1262858 1894287 2525716 3788574 5682861 7577148 11365722 17048583 22731444 34097166 68194332